Like-minded people stick together, so you’ll find that LGBT groups have lots of LGBT people in them, but this doesn’t mean that a non-LGBT person who enters an LGBT group will be turned LGBT. It just doesn’t work like that.
Once we put fear aside and start to understand identity, we see that it is just innate. It’s a part of us, it’s who we are. Many families have more than one child; they have the same home, the same internet, and the same school – but one might be gay, one might be trans, one might be straight, and one might be cis. They’re all themselves, and they’re all individuals.