The Boy Scout incident is disturbing, not for what Trump did - which is no surprise - but for the rabid show of support by the young audience for such an inappropriate speach. As I’ve said, I wouldn’t be so sure that quiet underbelly that got him elected is any smaller now. There are a surprising number of people that seem to actually like this.
While Trump’s strong approval numbers have dropped over the past six months from 27% to 20%, your main point is still valid. It’s especially noticeable if you live in or near Trump country, which I happen to. Trump support is still a real thing, even if it isn’t the majority.