Most people have been buying guns to protect themselves from the violence of BLM, Black Bloc Antifa, and Revolutionary Leftist factions. Those are the groups that have been instigating riots for two months. No doubt, they have plans to stoke mayhem during and after the election. Democrat Mayors and Governors have been reticent to maintain order. They have defunded the police, instituted cashless bail, and promulgated a host of criminal friendly measures. People are also buying guns to protect themselves from criminals.
I was having trouble connecting all the different threads you brought into the argument. How will your buying a gun in New York stop Proud Boys from suppressing voters in Texas who are already suppressed by Republican trickery? Will Trump order Right-wing zealots to attack New York City and suppress voting? It would help your case to spell out a few scenarios in more detail. Or maybe you would see it is Leftist violence that is the more realistic threat compelling prudent citizens to arm themselves.