Social Conservatism does touch on that topic area.
It also touches on self reliance, self responsibility and self worth.
In my mind, for the same reasons that self determination of sexual preference is desired, self determination of all personal actions that do not harm others is also desired.
All forces that abridge the affirmative construction of self are abhorrent.
So, if a person is made more happy to be in a relationship with a person who shares their gender, that is as as welcome to me as a person who is made more happy to be in a relationship with a community of people who share a common religious affiliation.
In all cases, the rule of no harm to others is implied. I don't need to see a jackass waving his junk or his cross in my face or in the face of those around me.