Fear of automatic cheating or getting an STD aren't the biggest reasons why women won't date bi men. Their reasoning is mostly due to their idea of masculinity.

Note im not saying women should date bi men. I'm not a bi man, so I have no dog in this fight. I'm just trying to explain the true reason why women won't date bi men.

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People always say this. But most of these reasons for why women won't date bi men are easily non-issues though. For example, the cheating thing is just insecurities most women can just get rid of. And education will help people not think only men who sleep with other men can get certain diseases. And im sure a lot of women are still smart enough to know that straight people can get the same diseases too.

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But the reasons based on masculinity is the tough one to change though. Because that reason is based on idealogy, not insecurities or misinformation.

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Most women see men who sleep with other men (especially if they are bottoms or give oral) as less masculine men. And less masculine = weak. And weak = bad.

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A lot of women can't view a man as a "real man" if he is attracted to men. Again especially if a man isbsucking D, or getting pound by another man.

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Even in progessive spaces, bi men say they still get the ick looks whenever they tell feminist ally women they are bi.

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This is going to take a couple of generations for this perception of bi men to change.

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Cultural ideals of masculinity and femininity are much more deeply ingrained because they're tied to identity, attraction, and social norms. As a result, again changing attitudes toward bisexual men is likely to be a slower, generational process than correcting myths about cheating or STIs.

Many women, even some who identify as progressive—may consciously support LGBTQ+ rights while still finding bisexual men less attractive because they associate same-sex sexual behavior with femininity or with traits they don't find attractive in male partners. Attraction isn't always consistent with someone's political values.

My point here that masculinity norms are harder to change than factual misconceptions has some support. Correcting misinformation about STIs or explaining that bisexuality does not predict infidelity is relatively straightforward. Changing deeply held cultural beliefs about what counts as "masculine" is much more difficult because those beliefs are tied to values, gender norms, and attraction.