I don't think anyone's main complaint against Trump is that he is a philanderer (which appears to have been). I don't think anyone's main complaint against Trump is that he is a drug addict. The main complaints about Trump may vary, but I would guess they are some combination of lack of intellectual curiosity, lack of critical thinking, extreme narcissism, extreme dishonesty, and overall temperament. Each of these faults appears to be at least two standard deviations from the mean (as far as presidents go).