Gay.....Is it a choice?

I think it is genetic.

It is not a choice, nor are they born to be homosexual. It is an environmental/surrounding things. One person's mental thinking and behavior can be easily influenced by their surrounding/environmental. Maybe because of family issues or just hang out with wrong group of friends, people can easily get influenced by their friends/family's behaviors without even noticing. If it isn't too late, there MIGHT be a choice to choose to be normal or keep getting influenced. Normally it will be too hard to stop something mentally.

I think people are simply born that way. I doubt people would choose to be something where they are ostracized and ridiculed.

is a really stupid thing.