To answer the question....yes, I think the majority of gay guys appreciate female beauty.
I've run across several gay guys and they were very generous with their compliments to me.
I think it would be "shorting" gay men to say that they don't appreciate female beauty. I am a straight woman, with no desire whatsoever to be sexual with women, but even still, I have a great appreciation for female beauty (and not because I am one). On many occasions, I have told other women that I thought they were beautiful, georgeous, hot, etc. but that doesn't mean I want them sexually. I am simply recognizing their beauty, and I think gay men are quite capable of doing that too.