ELI5: Why will the S&P continue to go up?

Let's just say I sold a company for a lot of money. I haven't invested a dime until I pay capital gains.

I pay the bill and am now locked up in a non-compete. I am not old enough to retire, I have a young child, and I can't start another company, leaving me in position to rely on passive income. Beyond anything that includes the phrase “historically” which is all I have hypothetically heard from financial advisor after advisor, why should I believe that the S&P will go up when beyond “history” when every metric shows an inflated, overvalued market and a global movement against shareholder capitalism?

History goes out the window when people hate capitalism does it not? And the vast majority of this country and ESG/Green movement people are borderline antihumanity at this point that I have seen. Somebody make a point convincing me I am wrong. And including “because no antitrust actions will happen because yes the system sucks” is not a valid argument.

This hypothetical argument is based off a friend of mine. I am of the opinion that it's hard enough to build a successful business once without ESG and Green hypocritical periphery. Doing it again and avoiding your industry due to non-competes is brutal.