I get that and I don’t really disagree that it possibly occurred but without proof it is just an allegation and meaningless.
What is fact though is that democrats hustled big time in their stronghold areas to gather up a marked ballot from every eligible voter. You can track their success by the percentages of cast votes in particular districts. Many urban districts reporting 95%+ while too many rural more conservative districts were lucky to top 70%. That is just a really good ground game.
No. In most states doing what is described in the movie is illegal.
The biggest problem with it is the chain of custody is broken.
The movie proves lots of violations of election law.