I don't. But I'm growing more comfortable with the idea of it.
Out of interest- what do you mean 'comfortable'? I was sure that comfortable, aka personally fine with it, comes after realizing that it's a basic freedom but personally opposing.
I think it's more of being "comfortable" with the idea of homosexuality and bisexuality (etc...etc...) being normal things in society. That's how it was more me.
I accepted the normality of LGBT ---> then I started to accept I was bisexual or gay --> started to support limited LGBT protections ---> started identifying as bisexual ---> started to fully support LGBT equality.
I think for some straight people it's like going from the first to the last step and its takes more time for them to understand/accept it since they aren't LGBT and are not going through the same learning cycle that LGBT people or are.
Most moderate/Liberal straight supporters of LGBT are more easily able to sympathize with LGBT issues and problems and thus are more likely to go from first step to last step without much issue.