I guess a self-made billionaire several times over, successful developer and business entrepreneur and well-known tycoon and charitable philanthropist, can be equated to a low-life in your world, but I don't inhabit that same world. What would you call a real low-life, if you reserve that label for someone as successful as Trump? I would call Obama a low-life for spending the last 7 years trying to destroy America as it was founded, but not Trump.
I don't know him personally. He's not my favorite guy. He runs with the rarified air crowd. But I wouldn't accuse him of being a low-life just because he's got a loud, bombastic manner and personality. He gets the job done.