A large scale gun confiscation has never been attempted. What happened at Katrina was nothing.
Try to think carefully about the difference between a large scale, nation-wide confiscation and whatever examples you mentioned.
How many cops are there in the country? Compare that with one hundred million gun owners.
How many cops are there in the country? Compare that with one hundred million gun owners.
With a SWAT team on your front lawn backed up by an APC, you’d know what outnumbered felt like.
To put it simply, what you’re thinking about is when a single household is targeted. There’s no way that single household can stop it from happening. But when the target is every household, in all neighborhoods across the country? Think it through. The cops lose overwhelmingly.
I think the real keyboard warrior on this thread spoke too soon.
Katrina is the example that gives me the most hope where this subject is concerned. New Orleans is a comparatively small city, geographically confined between water barriers (which had, at the time, intruded and flooded more than half of the city), and yet despite having National Guard units and volunteer police cars for miles (no exaggeration, I saw it up close), it was a struggle to "secure" the area.
Martial Law may be viable in small areas where the people are frightened and view the action as protective, but on a regional or national scale, where the people are angry and armed? Nope, it's just not sustainable.