You should learn to have such conversations without being offensive.
THis is part of our cultural problem of "not discussing religion or politics" in polite company. I haven't read your posts, and likely won't, but what I have from people posting like you, say someone like Nightwish or DreadLox, are so remarkably obtuse and unjustifiably arrogant that they strain credulity. If you bring that type of attitude to someone older with demonstrated competence, it's likely you'll frustrate them by your ignorance.
But one should never get upset by politics, i.e. opinions. Tha's dumb. People are tribal and have political beliefs for a host of irrrational reasons. Tha'ts just as dumb.