Here is the DEI dashboard for my university. Please point out where “received food stamps growing up” and “first generation college student” are mentioned? Because, very obviously, they only care about ethnicity and gender.
https://www.usmd.edu/IRIS/Dashboard/Diversity-and-Inclusion/...
Keep in mind that administrative programs like DEI offices are often unsupported virtue signaling. What matters is government and private funding, and there are absolutely opportunities in both arenas for support for “heterosexual white males” who come from unusual backgrounds.
In your case, I’d suggest NSF graduate fellowships and the Simon’s foundation.
That isn't what it looks like from the outside. The explanation circulating for how Claudine Gay ended up president of Harvard is that Harvard's DEI office was allowed to veto any candidate who wasn't diverse.