It's easy to say God's love is optional and there for the taking but if Christianity also says you will experience eternal torture by fire and brimstone for not loving him, it would be kind of like saying obeying pedophilia laws are optional, and you just go to jail if you choose not to follow them. It's pretty obvious it's a requirement. Punishing someone if he doesn't love you is extraordinarily cruel and selfish. Only egotistical narcissists do that. Not something a loving God would do.
Before you jump to say it's our fault we're doomed to hell, I must say:
1) According to Christianity God created the situation that led Adam to eating the apple, knowing he would do so; this is like someone leaving meat on the floor and getting mad at his dog for eating it. God bears plenty of the responsibility here.
2) Holding people accountable for events that took place before they were alive and were committed by someone else is absurd. We do not do this in our society, and if someone were to propose that if someone commits a crime, all his children and grandchildren should be put to death, we'd call that person a lunatic. Sorry, simple fact.
I'm 100% positive none of the Christians here will be convinced, but these are plain and simple facts. If you met a person who burned his son with a cattle prod because his son didn't show him infinite praise and adoration, you'd want him in jail. If this person put his son in a timeout because his great great grandfather was a murderer, you'd call him a lunatic. Sorry, but again, simple, simple fact.