It's ridiculous to say that political beliefs are a mental disease just because you don't agree with them but fine, I'll humor you.
If it's a mental disease, why isn't it listed in the DSM or any other medical book?
'you cannot reason, bargain or negotiate with it.'
Politics is ongoing negotiation, it sounds like what you actually mean is
'I'm right, I can't make some other people agree with me; that must mean they are ill.'
You also don't sound capable of negotiation, if spouting this kind of hateful, hyperbolic nonsense is your usual tactic, I'm not surprised people won't engage.