Trump is a typical conservative ideologue. He believes in free speech, so long as it is only HIS speech and that of his supporters that is ever heard. It's very similar to how the Harper conservatives in Canada tried to silence activists and critics by calling them "radicals", or even worse- supporters of terrorism! The problem is that fear and smear campaigns usually work, and conservatives such as Trump, Harper and now Andrew Scheer all like to be in total control of the message. It allows them to attack their opponents without actually having to explain what they would do differently, which is something they don't want the public to know about anyway because it would expose their far-right agendas. It's a brilliant tactic, but it's also a dangerous and slippery slope that everyone should be cautious about.