The main points, all defended and sourced below:
Very few states are sending out ballots without requests.
There’s almost no fraud in American elections — and no reason to think this year will be different.
It has been common in recent years for ballots counted after Election Day to favor Democrats — for predictable reasons.
Consider the possibility that most of what you have heard on the right-wing sources on this is simply wrong. it is parroting the president, who is prepping his flock.
Link: https://www.washingtonpost.com/politics/2020/09/24/why-arguments-that-mail-in-balloting-will-undermine-election-are-wrong/