IDK, in my observation as a working-class white dude, comfortable white people are less likely to start an entrepreneurial venture. Why take the risk when you have easier employment options?

There were pretty obvious, observable backgrounds/personality types that were starting businesses in my circle. Mostly SMBs like trading/retail firms, personal services, etc.

Well do to people assume that the masses are a bunch of hardscrabble foster children. Those folks exist. But the reality is that most people have families and have support systems to fall back on -- perhaps not as comfortable a fall-back as the kid where mom and dad are dentists or F500 executives, but not intolerable.

Startups aren't really businesses, so maybe they are different. Optimizing for successful venture funding cycle is a different problem.