I live in the southeast. There are pockets here that would be very tough to take. It would be a Vietnam situation. So, yes. The 2nd amendment still has deterrent power.
...And then he can sit back and enjoy the fireworks from the safety of Washington DC, while his followers are doing the dirty work.
Those 2A arguments never really made sense to me: what makes you think your gun-toting neighbor (or even yourself) will be on the right side of freedom?