You don’t think we could have leveled every square inch of Afghanistan? Of course we could.
Nobody does that this isn’t Hollywood. A takeover, just like you JUST SAW In Venezuela, requires boots on the ground and manpower.
This has been written about forever and NO American general would want to put his men to task if pacifying a place like America on the ground.
It is virtually impossible without going total scorched earth with nukes.
Are you seriously suggesting a tyrant could take over the USA if the population wasn’t armed. An American tyrant? Which group is he likely to come from?