https://twitter.com/rabbitfordinner/status/1740609135044083919
this mf thinks we still have medieval walled cities, like dude, you can literally just... walk out of the city. I mean, yeah, you can indeed disrupt logistics, but there's a pretty big gap between "trucks can't get in to deliver supplies" and "entire population is trapped inside of the city". Also railway transport isn't real I guess
also love the idea of completely destroying supply routes into the city with... backhoes and gravel. I guess city folk don't have any construction equipment of their own to clear and repair their roads. Also I guess the roads are just going to be conveniently completely empty for however many hours it takes you to block them, because, uh...
do an area study 
Even if we accept his ludicrous proposition as fact, he's forgetting that many cities have literal airports in the city limits. I suppose you could "gravel off" the runways, but how are you gonna get into the city if you just walled it off, stupid??
Incidentally, remember the anti-vaxx trucker rally where a bunch of white rural chuds with big machinery talked like they were gonna run down DC, but just drove around the beltway for 6 hours getting middle fingers and then left?
the antivaxx trucker rally in canada cost the country billions of dollars. if people in the US were willing to give their lives or freedom to fuck up the infrastructure they could do a lot of damage. maybe it wouldn't be permanent but it would be enough to hurt or even kill a lot of people in the process