It's probably easier to answer the question in the negative if you've had enough life experience to know that romantic/sexual attraction to a person of a different gender just doesn't exist significantly for you.

As much as I know bisexual people are ordinary and powerfully important to the queer movement, I don't identify as bisexual. Because I have never been able to muster up any romantic/sexual attraction toward women. It's not like I haven't tried, both before and after coming out as gay.

So for me, the answer to the question is simple. But I know it's harder for other people.

I hope one day we get to a place in society where bisexuality is the presumption, where strictly polarized people like me are respected and accepted, but not understood as the norm. On both ends of the spectrum!