I don't think that there are very many good writers who don't live without a sense of tension. If they haven't got one immediately available to them, then they usually manage to manufacture it in their private lives.
What is objectionable, what is dangerous about extremists, is not that they are extreme, but that they are intolerant. The evil is not what they say about their cause, but what they say about their opponents.
I wish you well and I hope it will be a huge hit, because that would be very good for me. And if, God forbid, it's a terrible flop, well that would be very good for me.