Suppose a black founder was out in the mall asking to install an app on your phone, security would drag them away.
Most of the founders went to prestigious colleges with enough connections and saved income to let them work on ideas before it became profitable. As the income divide gets larger, less and less Americans have that luxury.
For every founder that made it, they’re prolly 100s that didn’t make it even if they did the same things.
For a large chunk of the planet, surviving to day is a struggle, they can’t weather out months blowing their only savings on an idea that may or may not work.
This is why most founders tend to be white men from mostly wealthy backgrounds. Most VCs are in a similar demographic and would fund them, so it’s somewhat a self fulfilling cycle.