You couldn't care less but as we know from islamist extremists,
Who are the "we" here? It's only you. Quote
they'll force their believes on others at any price.
Where did you get this idea? It seems you are suffering from Islamophobia.Islamic extremism doesn't mean Islam.
Christianity doesn't mean "let's repeat the crusades".
But as said by mikeywith, it's not helpful to start a P&S discussion here. We have some nice replies in that topic, how P&S discussions are creating big, big drama.
That's what all Islamophobia sufferer says when someone points out their problem. Of course, you are against Islam. I have read the thread and I didn't see mikeywith talk about Islam. I am curious what you have said to him via private message. You both do not agree and that is fine, but I do not see any point in sending a PM full of insults and hate without having Islamophobia.
You should know, that Terrorist does not have any religion.
They are terrorists and they just hide behind a religion.
We have different believes and of course, that's very legitimate. 
Did you come back to your senses just now? How it's legitimate? why did you send him a PM full of hate and insults and ask him to remove his feedback? Doesn't that mean you wanted to shut his mouth with your action? What does the forum system have to do with someone's political view?