Just as likely to be a false flag as when powder envelops were sent to Republicans not long ago. Plenty enough psychos who will feel they need to do something drastic to stop the evil other side from destroying everything they value... which is the view of both sides, and ironically enough they make fun of each other for holding the same views they do.
It'll get worse because everyone thinks it's the other sides fault. No way their morally superior side could be at fault in any way. No chance. Anything we do is justified resistance to the evils of the other side.
For anyone who remembers the "political discourse" of the 70s; get ready for round two.
For the obvious people who will hate what I have to say because I offend their moral superiority as described above... ya, I have no doubt the other side bears a lot of fault, but so does yours. Don't even have to know which side is replying.
Integrity is standing up against poor behaviour even when you have to criticize your friends. Any coward can call out the bad behaviour of the "enemy". Civility will return when integrity does. Until then, mind the packages.