Politically Incorrect

Do you necessarily have to be rude, vulgar and abusive to be incorrect enough and with that have a chance of being elected?

The British referendum on the Brexit and the result of the 2016 American presidential election seem to prove the truth in this. Emotion is the rule, tweet the language and lies are the argument. Since everything on the Net is relative, insults and also true reasoning, electoral effectiveness is guaranteed. Populations or elites, governors or the governed, the entire democratic world in fact seems to have lost their reason in preference of more or less articulately expressed emotional passion.