Because they're both populist, if you don't care about the policy it's easy to like both trump (pre elected, if you still support him after, you're either willfully ignorant or brainwashed) or Bernie

Even though he is a socialist (which I hate) I believe he genuinely cares about the issues he says he cares about, unlike almost everyone in politics right now, Bernie is honest. Donald Trump, well he gets shit done and is politically incorrect, he has the courage to say things that many politicians don't have the courage of addressing (a similarity between both Bernie and Trump). And Bernie has not changed that much on terms of his policies, he supported gay men and women when it was unpopular (I loved this big time!), he says what he thinks about the Saudis and no one,not even trump has the courage to do this, he is a brave man in the truest sense. I love Bernie more than Trump for that reason. But yeah, both are populists, both are unlike anyone who I have ever seen, I really wish Bernie was president for at least one term, Hillary B Clinton and the Dems cheated him out of his rightful ticket. So fuck Hillary and fuck the democratic party establishment, also fuck Joe Biden too while we are at it. For someone who make a big deal out of the Jan 6 disturbance, Dems are perfectly capable of and are willing to steal elections and throw the will of the people into the dustbin.