The position that all humans are created equal does not apply for Hinduism since the jiva is considered to be eternal. The physical organism and the Atman of all Jiva are equal. However jivas are unequal because of difference in their karma.
Bhishma said, "Verily Righteousness is fraught with victory. Its
effulgence is so great that it illumines the three worlds. A man of
wisdom cannot catch old of a sinful person and forcibly cause him to
become righteous. When seriously urged to act righteously, the sinful
only act with hypocrisy, impelled by fear. They that are righteous
among the Sudras never betake themselves to such hypocrisy under the
plea that persons of Sudra order are not permitted to live according
to any of the four prescribed modes. I shall tell thee particularly
what the duties truly are of the four orders. So far as their bodies
are concerned, the individuals belonging to all the four orders have
the five primal elements for the constituent ingredients. Indeed, in
this respect, they are all of the same substance. For all that,
distinctions exist between them in respect of both practices relating
to life or the world and the duties of righteousness. Notwithstanding
these distinctions, sufficient liberty of action is left to them in
consequence of which all individuals may attain to an equality of
condition. .........All men are equal in respect of their physical
organism. All of them, again, are possessed of souls that are equal in
respect of their nature. When dissolution comes, all else dissolve
away. What remains is the inceptive will to achieve Righteousness.
That, indeed, reappears (in next life) of itself. When such is the
result (that is, when the enjoyments and endurance of this life are
due to acts of a past life), the inequality of a lot discernible among
human beings can not be regarded in any way anomalous. "
Mahabharata, Anusasana Parva, Section CLXIV
However, notwithstanding inequality, jivas must be treated equally.
O Arjuna! In My view that Yogi is the best who, out of a sense of identity with others on account of the perception of the same Atman in all, feels their joy and suffering as his own.