It also seems to be fairly sexist, and it hurts me to know that women out there are willing to tolerate such sexism.
I'm sorry it hurts your feelings but you realize as that a part of people making their own decisions and choices, they will make decisions and choices different than you or me.
I don't see why this should be hurtful to you, though. Do you want people to make their own choices, or do you want people to make your choices? The former is good, the latter is very immature and betrays a remarkable lack of maturity and life experience on your part.
As for it being sexist, that's certainly a portion of it. But it need not be the beginning and end of the analysis. Can a woman rationally come to that conclusion without being sexist? I think so - I certainly see no reason why not. By branding one outcome categorically sexist (in this context), you limit the range of options and can't fairly evaluate the decisions people make.
So while sexism may be a component in some of these decisions that hurt your feelings, they need not be the only component, nor the controlling component. If you limit the range as you suggest, you will consistently find fault (because it doesn't match your world view) where some times no fault exists.