[Jemaclus]

Having been in this situation before several times, the only real option is to quit and find another job. You can't fire your boss -- unless they are doing something egregiously illegal. You can't go around them, and you can't really undermine their authority. And CTOs, in general, don't quit on their own without being forced out by the board.

I mean, you can try to get them fired or get them to quit, but it's not very professional and you're more likely to get fired than fix the actual problem.

In general, folks don't get to CTO status for no reason. They typically get there because they generated results. Even a small start-up CTO secured funding and built a POC, and certainly a mid- to large-sized company's CTO is going to be extremely effective, regardless of how good they are at their job.

You can take the other advice and try to be stoic. Put all of your efforts and passion into non-work activity, coast, and do the least amount of work possible at your day job. That's totally a valid thing.

If you're like me, that sounds like a personal version of hell. I'd rather find another job wherein I can be excited, rather than dreading dealing with my boss every day/week.

So unfortunately I think your best shot is to just keep looking around and find something else that's a better fit.