I'm just responding specifically to your argument that eggs are easier to find than beans and rice in food deserts.

Aggravated Hank Hill voice: "Eggs being considered vegetarian doesn't make eggs better, it just makes vegetarianism worse!"

I used to get Bob's Red Mill brand TVP from Safeway but it disappeared from their shelves a few months ago (Tried multiple locations) and hasn't cone back. Considering that it's basically just soy and pulses, and also that Safeway still carries the rest of the Bob's Red Mill lineup, it does feel suspiciously intentional.