Your race reductionism is a fine example of inductive reasoning. Adding class to the analysis requires deductive reasoning. If you have better numbers or sources to offer, please do. Simply saying "is not" only convinces people who share your beliefs.

For anyone else who wants to look at the data, this is what I found: https://medium.com/a-universalist-in-an-identitarian-age/why-blacklivesmatter-should-be-poorlivesmatter-1facc8646e4c