I think that China could do absolutely untold damage to the American psyche and illusion of invulnerability if it simply instantly obliterated these clowns on Taiwan from hundreds of kilometers away with a cloud of drones dense enough to block out the sun. America treats the navy seals like they are all Master Chief, when in reality they are just guys who can carry a log and swim for a long time or some shit. Maybe that matters when you’re like… raiding a compound of a guy who has been on the run for decades while he’s asleep with Neon Genesis Evangelion playing on the TV, but genuinely what are these guys going to do to actually fight back against China? China will never even let them see a single PLA soldier lmao.
Blocking units were real, but didn't shoot people. They were partially a mobile reserve of veterans to shore up the front line if it was weakened, partially for grabbing lost or deserting troops and pointing them to collection areas that would figure out who they were and get them back to their unit, and partially guarding important stuff from any nazies that managed to get through the lines to do recon or sabotage.
Yeah westerners will twist absolutely anything the USSR did. They were effectively just reserve units to plug holes, and somehow that turned into machine guns mowing down their own Asiatic hordes.