I see it all the time during political discussions on social media. That if you hold certain views you are branded a 'lefty' or 'loony left' like its some sort of insult. I've noticed that it tends to be a stock response by some people when they can't think of something more intelligent to say.
Aibu to wonder what is so 'loony' about holding left wing views, and that actually the world would be a better place if people were more tolerant?