By seeing today's world scenario, who do you think, will be target of Kalki. Because even today, we can see the different people having different paths. Is there, any reference, who will be actually target. (Off course those will be adharmi people, but any specific detail?)
विचरन्नाशुना क्षौण्यां हयेनाप्रतिमद्युति: ।
नृपलिङ्गच्छदो दस्यून्कोटिशो निहनिष्यति ॥ २० ॥
Displaying His unequaled effulgence and riding with great speed, He will kill by the millions those thieves who have dared dress as kings.
The objective role and activities of "kalki" a avatara of Lord Vishnu that has yet to come is described in various Hinduism scriptures like puranas and itihasa. First of all let us see what Mahabharata is saying about who will be target of Kalki. It
Is mentioned in Mahabharata -Vana Parva-Chapter 191 by sage Markandeya that Kalki will destroy foreigners as well as dacoits and thieves and bandits.
ततस्चोररक्षयं कृत्वा द्विजेभ्य: पृथिवीमिमाम् |
वाजिमेधे महायज्ञे विधिवत कल्पयिष्यति || 1 ||
Markandeya continued, 'Having exterminated the thieves and robbers, Kalki will, at a great Horse-sacrifice, duly give away this earth to the Brahmanas, and having established anew the blessed rectitude ordained by the Self-create, Kalki, of sacred deeds and illustrious reputation, will enter a delightful forest, and the people of this earth will imitate his conduct
Matysa Purana - Chapter 273.27 is telling us that at the time of Kalki avatara Yavanas will dwell here for sake of profit. All types of people will steadily detroit by following contrary way of life i.e. they will be adharmik. Kings will be untruthful and will be greedy. All these type of people who are following adharmik way , unrighteous way will be overpowered and will be killed by Kalki, no matter they are Mlecchas or Aryas. And only good people will remain.
कल्किनानुहता: सर्वे आर्या म्लेच्छाच्श्र सर्वश: |
अधार्मिकाच्श्र येSत्यर्थ पाषण्डाश्चैव सर्वश: ||
The people will steadily deteriorate by adopting a contrary course of life , so along the kings will be greedy and speakers of untruth. All will be overpowered (killed) everywhere by Kalki whether they be Aryas or Mlecchas.
The Bhagavata Purana Skanda 10-Chapter 40- Verse 22 is suggesting that the target ogf Lord Kalki will also be meat eaters people who will be posing themselves as kings.
नमो बुद्धाय शुद्धाय दैत्यदानवमोहिने ।
म्लेच्छप्रायक्षत्रहन्त्रे नमस्ते कल्किरूपिणे ॥SB 10.40.22 ॥
namo buddhāya śuddhāya daitya-dānava-mohine
mleccha-prāya-kṣatra-hantre namas te kalki-rūpiṇe
Obeisances to Your form as the faultless Lord Buddha, who will bewilder the Daityas and Dānavas, and to Lord Kalki, the annihilator of the meat-eaters posing as kings.
we find here mentioning that Lord Kalki will destroy the meat eater kings of the earth. i.e. we can say that the meaning of this is that he will end the rulers who will have indulged themselves in materialistic things.etc. and falsely considering themselves as kings and rulers.
So in conclusion Kalki would rid the earth of the unrighteous and implant dharma again and his target will be unrighteous people including people from outside of bharata as well as insiders i.e. Aryas and Mlecchas. All the people who are unrighteous including kings and thieves and bandits etc.
According to Kalki Purana, Kalki Avatara will kill Buddhists, Mlecchas and Yavanas.
The introduction of the Purana summarizes this as follows:
Among the upa-puranas or sub Puranas, the Kalki Purana is most sacred and widely respected. At the end of Kah-yuga, the Supreme Lord, Hari, will incarnate as Lord Kalki and kill all the mlecchas, yavanas, atheists, and Buddhists of the world that defy the Vedic authority. The pastimes of Lord Kalki are the subject matter of this literature, which is presented in story form. Exalted personalities can see everything, past, present, and future. For this reason, there is no fault in narrating these future events as if they had already occurred. The Kalki Purana consists of thirty-five chapters.
And, we can find the details of these battles against the Buddhists in subsequent chapters of the Purana.
For e.g. Chapter 14 states:
Lord Kalki Conquers the Buddhists Who Opposed Him
Suta GosvamI said: Just as a lion, the king of the jungle, attacks a female elephant, Lord Kalki, the life and soul of all living entities, attacked the army of Buddhists.
Thereafter, a fierce battle took place between the Buddhists and Lord Kalki When the Buddhists became disheartened and began fleeing from the battle, Lord Kalki, acting as the commander-in-chief of His army, addressed the opposing warriors, who were injured in the battle, whose garments and armor were scattered here and there, whose hair had become loosened, and who were screaming loudly in pain: О Buddhists, do not run away from the battlefield. Stay here and fight to the best of your ability so that you will avoid the shame of being considered cowards.
Although Jina had been injured, he became enraged upon hearing Lord Kalki’s taunting words. After picking up his sword and shield, he rushed at Lord Kalki, who was sitting on His horse. In the duel that ensued, both fought with great enthusiasm so that even the demigods, who were watching from the heavens, became surprised to witness Jina’s skill in fighting.
The greatly powerful Jina pierced Kalki’s horse with his trident and then made the Lord fall unconscious by his onslaught of arrows. At this, the wicked Jina attempted to capture Lord Kalki, but was unable to pick Him up.
Lord Kalki had become so heavy that Jina could not even move Him and this fueled his rage. Being unable to take Lord Kalki prisoner, Jma finally took His crown and weapons and fled.
Indeed, the heavy breathing of Lord Kalki’s horse caused many opposing soldiers to fly into the sky and then fall down at distant places. Some of them fell upon the horses and chariots as they descended onto the battlefield.
Within a short period of time, Gargya and his associates killed six thousand Buddhist warriors. Bhargya killed ten million enemy soldiers with the help of his army, and Visala killed twenty-five thousand.
And, from Chapter 16, we have:
Suta GosvamI said. After killing the Buddhists and mlecchas of Kikatapura, Lord Kalki took their wealth and returned to His capital, along with His vast army.
Lord Kalki, the unhmitedly powerful protector of religious principles, next went to Cakratlrtha and took a ritualistic bath, according to prescribed procedure.