This doesn't factor in Silicon Valley. SV is an entirely different animal. The cost of living there throws the math way off. I can imagine that those wages are typically very low. $200k in SV is comparable to $70k in most other cities. This is why it's beneficial to work remotely for a SV startup and live somewhere more desirable.
I think we're conflating all startups with SV, which shouldn't be the case. Certainly folks joining SV startups IN SV are being taken for a ride.
What's the basis for that estimation? Given California's income tax and higher rent, I'd say that the difference in cost of living is $20-30k, not $130k.
Most people don't want to rent for the entirety of their lives.
The raw numbers are nothing to sniff at, and you don't get that buying power in much of the country.
I think it does a disservice to the other problems and discussion points to toss everything under "risk".
There are a lot of different variables involved and a great many of them boil down to calculated gambles on the part of the employee and employers. Those are worthy of discussion and there are plenty of discussions to be had around those. But simply calling it "risk" and saying you need more of the upside is so simplified its nearly meaningless and impossible to have a conversation about with everyone involved having the same idea about what is being discussed.