I’ve lost all interest in dating men at 31?

In my mid 20s I used to be very hopeful and put a lot of effort into making myself and my life, career, etc into something that would be attractive to other men that I would be interested in. I'm fit, I make a decent living and live in one of the largest metro areas in the US. I have lost pretty much all interest in other men or the entire concept of dating or even casual encounters with men. It feels like I sort of missed the boat.

Does anyone else feel this way? The guys I meet in the Dallas metro have all been really underwhelming. I've forced myself to overlook a ton of red flags in men that I've met and got to know. Guys all have some massive problem that I can't get over. Either they use hard drugs on occasion like cocaine, or have horrific money habits like being thousands in debt and spending a ton of money on the most frivolous items imaginable. A couple of guys have had severe mental illness that wasn't apparent until seeing them for a bit. There's some other men that talk to me that I haven't given the chance because they're either still living at home or obese or similar glaring issues.

Are my standards too high? I have straight friends and none of them seemed to have these struggles when dating. Most of them married in their 20s. I've gone though several rounds of being crushed, lowering my standards to a point where I previously thought impossible, forcing myself to accept it, only to realize they're still too high.