So not only are you stupid and dumb, you are an idiot.
1) Your own racism manifests in lumping all whites into the same basket/category, such as presenting what were laws and policy of some of the states as being the case in all of the states. Denigrating ALL whites is another manifestation of racism. Lookup the term in your dictionary(s).
2) The 3/5th clause wasn't claiming that slaves, or non-free men, were only "part" human, rather that when counting population in states for purpose of determining number of representatives to Congress, slaves(non-free men) would only count as 3/5ths. Had the slave holding states been able to include the number of slave males in that figure, they would have representation and votes in Congress out of proportion to those of their population who could vote (and be subject to paying taxes). Slaves were not citizens and were not allowed to vote. It was a compromise concession to the "Southern" slave owning states that they got representation based on including a portion of non-voting population.
FWIW, women, free or slave were not allowed to vote, and the males had to be age 21 or over. All three of these factors, 3/5 count towards population, women's voting, and age drop to 18 were corrected by future Amendments.
You might consider re-reading the Constitution and take some reputable courses on the Constitution, such as via Prager U.