I don't think the stadium not being packed has anything to do with him losing support.
I think there is still concern about the virus, the violent protestors outside, negative media coverage, etc..
That being said we must not get complacent!! We gotta get out and vote. Even if you think it doesn't matter. If you're in a historically blue state go out and vote Trump. You never know what can happen.
Totally. I'm sure that a lot of people heard the numbers being thrown around and decided not to attend.
I actually was considering making the long drive out there but I decided against it because I was under the impression that it would be swamped and I may not even get to see anything worthwhile.