They objectively are. Women are infinitely less tolerant of bisexual men that men are of bisexual women. And for good reason, of course. Regardless of this progressive wave, most women regardless of what they say have a strong preference for a heterosexual male. Even among the alphabet degenerates, there is minimal clout or allure to bisexuality. They either become the flamboyant homo, identify as non-binary or become trannies.
I remember reading an article from some progressive cadaan chick being disappointed and doing mental gymnastics about her boyfriend coming out as bisexual. She'd blame the breakdown of the relationship on everything but his sexuality. Questioned whether he was into her and got paranoid because now she isn't competing with just other women, but potentially every man in their LGBT+ally communities. And in her own words, she cannot compete with men because it just a different thing.
Clear cut reasoning brother. You are either male or female and act accordingly unless there is some biological malfunction that is obvious in the person and medically proven. There are men born with female characteristics who don't cut the mold of manhood for that reason. Beyond that, a healthy male should act accordingly. Only reason he would want to sleep with men is sexual perversion. Women are a good judge of real men thankfully.