Technically no one should be called insane because of their opinions

I say no because it is just our beliefs, its no different than atheists not believing in god but does that make them insane?

I will pwn your arguments :D

Beliefs depending... if you believe that the earth is 6000 yrs old and gay people cause hurricanes, yes. But not all/most religious people, no.

In no way at all are people that have a religion or belief insane. That is ridiculous. You may be able to say they are wrong (if you are an atheist) , but mentally insane is way too far.

I can just imagine what most of the non-theists are gonna say ;D

Many athiest and non-theists think that religious people are insane.

This would be a truly terrible reason to consider "religion" a psychiatric condition. During the height of Soviet psychiatry, anyone who opposed the Communist Party was considered to be mentally ill and confined to a psychiatric gulag.

Anyone who thinks that religious people are literally insane doesn't understand the science of psychiatry.

Not mentally insane. They are just so weak and pathetic that they have forced themselves (and others) to believe in a false bullshit hope of something good at death.

Religion is a set of beliefs, nothing wrong with believing in something.

As long as their Religion does not cause harm to others, their Religion is O.K.