God only sends people to Hell because in one way or another they ask Him too.

Freedom to be faithful to God or not is inherent in all of us. And God upheld that freedom in us, after we threw it away the first time by eating the fruit in the Garden, through Jesus saving work on the cross.

If you go to Hell, it's because you sent yourself there, by asking God to do it for you. God is the only thing that is holding you alive. When you reject Him formally, you are asking Him to send you to destruction. That is what Hell really is.