Phobia can be irrational aversion too, but not prejudice.

Kinsey 5 are almost in the lesbian camp, and would be a great preferance of mine in terms of trust. But is that real kinsey 5? A woman who is constantly homo leaning, or someone who is homo leaning just for few years and then go back to strong hetero attraction? Bicycle exists, especially in young adult. The phrase "homosexuality is a phase" can be true for bisexuals

It isn't irrational not to feel safe with a partner whose sexual nature isn't stable. Real homo leaning bisexuals in stable way for life, are as rare as homo, theyre mostly hetero leaning or half and half.

It isn't irrational not to want a long term relationship with someone wired for opposite sex craving. Relationships can always end and feelings can change, but this is even way more likely when you're partner sexuality is only partially satisfied, and their nature has a strong craving for your opposite sex.

The whole dating thing is irrational, based on irrational feels, and often very shallow, homosexuals wishing for partner of equal nature it is one of the most rational wish based on objective factors for the security of bond and peace of mind

It doesn't matter how much you like someone, if you wish for a relationship likely to last decades or until old age, investing yoyr emotions and making yourself vulnerable to immense pain, you must to look for long term perspective, and many women will be very poor long term perspectives, in many cases, for their sexual wiring, and recognizing it, it is the opposite of irrational. An irrational person would just staying with someone cause they're beautiful you have all these dopamine fueled feelings for her. That would be irrational.

And I repeat, I find it absurd to portrait bisexuals, who have tons of choices, as victims, because of the legitimate desires of some homos to date long term people of their nature and calling them irrational. First, because as said it isn't irrational, and even if it were (and it isn't at all), the whole attraction thing it is irrational, so doesn't make any sense to see irrationality as a bad thing in this matter. And second, because homosexuals are extremely at disadvantage because of their numbers, so questioning the dating choices, done to increase the chances of long term success and preserve themselves from mental pain, it it is even more unfair (as it is already unfair to question people private choice of dating in general, but even worst in this case). It isn't acceptable to call people phobic for their legimate dating choices. So conclusion: only phobic is mistreating people, not, not wanting to have long term monogamous relationship with them.