You're correct on every point. I'll only add that all those factors are tougher to measure as far as actual/practical voting impact. We need to tackle each issue raised in your post but we must focus on restoring access to the ballot! Just look at the shenanigans going on in all the newly flipped state houses around the country. Even though more than 60% of all Florida's voters voted to restore the rights of felons, the GOP is working hard to NOT implement the will of the people.
Millions....MILLIONS of folks have been purged from the rolls since 2014. We can not play the game focused on thousands when they(our political opponents) are playing for millions.