The problems with male homosexuality are not restricted to anal sex, though I am sure this practice is harmful to all who take part in it whether hetero or homo, willingly or unwillingly.
I am sure few women willingly take part in anal sex.
I am not "fascinated" by it, I find it completely disgusting and am sure it can have little to do with emotional attachment.

The real problem is the intrinsic extreme promiscuity, large numbers of sexual partners, "open marriages", unions and relationships.

These are well documented and have been linked to on other threads, but do NOT infer that monogamy among male homosexuals is impossible.
The elderly couples in my area appear to be monogamous, which could probably be put down to waning sexual drive.....something which affects us all regardless of "orientation"