They're saying being gay is a religion... LOL

Not at all

Its not a decision tho

'Mom' decides. (& sometimes a school teacher) That is a decision

No, nobody decides it, its a thing the kid realizes as they get older

So the child draws this conclusion at what age?

Idk depends on the child some kids as early as 6, for some people its in their teen years, for me personally it was like 10 or 11.

When I was 6, 10 and 11, I was concerned about my bicycle and playing with other kids in the park.

Cool, every one has a different childhood experience lol

Comparing apples to carburetors again?

?

Participating in one of the two political ideologies based on your sexual preference or religion is a severe mental illness.

You raise a valid point