I don't know where you got your numbers from, and it's quite possible that they are correct, yet, my experience is so different from that that it's simply hilarious.
Going only with those that have come out to me, over 50+ of my closest acquaintances and family (more than 50%) are bi, or at the very least bi-curious. Both male and female. Of all ages. From at least 10 countries. Some are in hetero relationships, others in Homo, some in Poly.
So, I may be the outlier here, and be the exception that confirms the rule, but to me, being bi is becoming if not the norm, at least NOT rare at all.
Look, your tastes and opinions are yours and I wouldn't dream to judge or even have an opinion of them, you do you. Maybe you could have the same attitude too? You feel me?
Peace