Liberals aren't supporting him because it is the purview of conservatives to beat their meat while espousing 'family values'. He isn't black. He isn't a border wall scaler. He isn't red. He isn't yellow. He isn't anything that you hate, other than he is expressing his anger in an entirely inappropriate way.
Do you really think that liberals would endorse his behavior? Are you disconnected with reality? Would Reagan want him institutionalized? I think not. Reagan threw insanity into our society. He was fiscally opposed to taking care of crazies. Reagan wanted all of us to deal with insanity. He wanted us to face crazy. Well, there you go, and there you are. Delivered by the god, Ronnie. Do you want to spend government money on crazies, or would you rather that they masturbate on the sidewalk, where you can stroll with your girlfriend, and explain to her how 'liberals' are the reason for the cum stains?