Your well-funded startup is already dead

This is the major reason I have turned down investment (even when it looked like I was worth it) - you get some asshole like this whining about how you aren't pretending to work enough, about how you aren't neglecting your family enough, about how your house isn't as tiny and cheap as it could be.

You know what? I have options. There are thousands of employers within easy bicycle distance, all who will pay me very well, many who will even cook me pretty good food. Most of them will give me stock options with a higher total expected return (even before accounting for the diminishing marginal value of money) than a funded startup.

That's the problem, from the perspective of people like OP, technical people have choices. Technical people who have the social skills to even have a chance at getting money have huge numbers of choices.

If I am going to live in a tiny house while working ridiculous hours (which, incidentally, seems to be what I'm doing lately) there's still no real reason for me to let some asshole come in and start complaining about how hard I'm working... fuck, I can support like three people off what I make as a contractor at one of the more comfortable area employers. Why do I need to deal with this guy?

I think scaling challenges and hiring talent is a far more common issue.