Musing about the American election

It seems to me that this is surely one of the most difficult Presidential election to predict with any great certainty because of so many factors pulling in different directions:

*   national polling and enthusiastic rallies indicate high motivation for Democrat supporters to get out and vote - particularly for women, for whom the gap between support for Trump and Harris is so wide;

*  on the other hand, the US papers are full of stories of different Republican states cutting out large numbers of registered voters off the voter enrolments,  and it seems very hard to know how many of those were "legitimate" (deceased people, for example), and how many are real acts of disenfranchisement that might have a disproportionate effect on Democrats;

*  on the third hand, it's hard to see a Trump/Vance campaign tactic that is working for them - I think we can safely say that the attack on Haitians has not gone well, given the amount of mocking on line it has generated, not to mention the Republican Governor of Ohio saying he's "saddened" by it in a column in the New York Times!   It's clear they don't want Trump coming to town to stir up more trouble unnecessarily, and I expect it won't happen;

*  there are also very odd things like Georgia saying every vote has to be counted by hand, with likely delays in declaring the winner and that providing time for dubious legal challenges, and other states reducing dramatically the number of voting places.   Again, you would have to suspect that these work against Democrat voters, who are more likely to be younger workers who need the most convenient time and place to voter due to their working hours.   Older Americans, who are more likely to vote for Trump, can more easily waste time getting to a voting booth.   But how big an effect can this have?

I think everyone can agree - this American system of leaving voting arrangements up to each individual state is just a crazy mess.   If they can't bring themselves to have a national electoral commission to run elections uniformly across the nation, can they at least do something that seems so obvious to Australians watching:   mandate nationally that voting day is a Saturday, where working hours and time to access a polling station is much less likely to be a problem for most people?  

Update:  One other thing I forgot to mention - the Democrats apparently have a heap more money to spend on advertising, and we've been reading for months about the Republicans being poorly organised in many states.  But as I just don't understand the complicated system there (the parties seem to have to do so much work just to get people registered to vote and then to vote) I don't know how important these factors are.