> Virtually all self-made millionaires+ started companies[1]
The article you linked makes no sense related to your claim. Unless you're saying that millionaires+ (whatever the + means) don't exist outside of Forbes.
> There's really no other way to get there
Joining a startup as an early member? Working in finance or computer science or medicine with ridiculous salaries?
Here's a link[1] with thousands of jobs with an average income higher than $100k. If you have that kind of income, you can become a millionaire.
> QOL of working on what you want, commanding your own ship, being financially independent, etc.
How about the QOL of not knowing for a long time whether you'll succeed or fail? Or having to deal with investors, marketing, managing people, aka everything that you probably don't want to be working with? Not commanding your own ship because most of it is built with other people's money?
If you're talking QOL, I don't see how playing the lottery with your future (in your own words) is better than having a high-income job, then FIRE in your 30ies.
[1] https://www1.salary.com/Six-Figure-Income-Salaries.html?page...