Do you believe homosexuality is genetic?
For the most part, but that doesn't explain everything.
Another factor to consider is that sexual orientation is seldom "binary", it is a continuum.
And I don't "believe" anything, the facts point to it...my belief isn't important, because facts are facts whether I believe them or not.
You may want to brush up on what constitutes facts, and how facts become facts.
Since you believe homosexuality is for the most part genetic, what's your source for that "fact"?
I just finished telling you that "my BELIEF" does not enter into it.
Therefore, you being obtuse is intentional. It's not going to work...your weak tactic is going to fail.
Science is finding genetic markers that point to tendencies toward homosexual orientation.
Since sexual orientation operates along a continuum, if those markers are sufficiently present, all that remains are environment and social factors and whether or not the person actually identifies as such due to their own introspection.
If they do not, then they simply try to deal with what is now referred to as "closeted" tendencies.
If their orientation is equally straight and gay, they wouldn't necessarily identify as gay but instead might live as a straight person but occasionally experiment with bisexuality.
Again, this is because sexuality is a continuum, and seldom "binary".