Why is everyone on the sub so against religion?

This is kinda meta and might get taken down but this is a serious question. I was looking at another post on this sub that was about a 13 year old who was being peer pressured into doing it with his gf. One guy cited a Bible verse

(1 Corinthians 10:13 says, "No temptation has overtaken you except what is common to mankind. God is faithful, and he will not let you be tempted beyond your ability

You are a child of God, don't give in to peer pressure, or let it lead to sexual desire amongst you and your girlfriend.

Keep things Holy with love.

Love is patient)

As you can see, it seems like any normal person would see that this guy is saying “no you shouldn’t have sex as a 13 year old.” Which is pretty reasonable. However, he was downvoted a lot and had a lot of people making fun of/ insulting him. This seems to be a theme across the sub. Why is everyone so against religion?