I don't think he has ALL the same flaws. I think he would be a much more competent administrator of the executive branch. I think he would make much more rational decisions as the commander-in-chief. I think he will communicate somewhat more intelligently, even though he says stupid **** at times. I think he will build better relationships with our allies rather than tearing them down.
I could honestly keep going, but this isn't a "well they both suck the same" situation. None of the potential Democratic candidates, nor any of the other Republicans challenging Trump, are as bad as Trump. If the choice was Trump or Pence I'd vote for Pence. If the choice was Trump or Barr I'd vote for Barr.
Trump is incompetent and that puts every last one of us at risk. We feel safe because we're the U.S.A. and nothing can hurt us, but that's an illusion. Trump's incompetence puts all of us at risk. And we can't allow him 4 more years to institutionalize his bad practices.