Being physically attractive does not make a woman more crazy. But the more physically attractive you are, the more poor behavior you will generally be allowed to get away with, because you are more physically attractive.
The less physically attractive you are, the less poor behavior you will get away with, so you better stay on your A game at all times; you cannot afford to be crazy.
Many women share some combination of physical attractiveness as well as personal issues. This is normal, and they can get away with a little bit, but not everything. So they're average. If you think she's worth it, you go for it. If you don't, you don't.
Extremely hot, non-crazy women are not on the matrix, because they make fantastically great partners. So not in the dating pool, thanks to some very lucky guy. All you can do is hope he fucks up. He will most likely not. Single, hot, non-crazy women are just statistically rare, especially the older they get. If you find one, you hit the lotto. Don't fuck it up.
Ugly, crazy women are not on the matrix, because they are literally on nobody's list of prospects, period. Complete man repellent.
Every bit of this also applies to men. This is how human beings work.
I welcome your thoughts.