I understand the constant negative media coverage and as we know he could give two shits what people think about him. The problem is no matter kind of coverage he's getting he's 100% responsible for how conducts himself. I've got 3 kids under the age of 15 and my number one goal is to raise them from children into respectable and successful adults. So you're absolutely right that constant "negative media coverage" does have an impact, but so IMO morals, decency and simply a code of morals or ethics do to.
The President is the most powerful guy in the world and whether we agree or disagree with him he should be looked up to and given respect. That said, I can't and simply will not respect someone that lacks compassion, sympathy, and simply behaves like a spoiled child. That's not anything I want my kids to be. Sure some of that is brought on by the media, but look past that and look at how he acts and what he says when it isn't being flipped around. The guy shows zero respect for any political opponent, has absolutely no loyalty to anyone who has a different opinion, no issues attacking people based on race, ethnicity, gender, etc, is the definition of a hypocrite, and a criminal on top of it (whether we want to hold him accountable for such crimes as president or not)... it's disgusting. So while you were able to come around and say "he's kind of a douche but I like his policies" I see a disgusting excuse of a human who has no business being the face of our country, because there is nothing about him that I'd want my kids seeing in a person of power.
The difference between him and others whether right or wrong is they all may be corrupt, but some hide who they are in public while he puts it on display like its something to be proud of.