Well, the second amendment may offer some protection as well.
I have been part of a special forces raid to capture or kill and I can tell you the opponent has no realistic way to win that day. Sure you can win in the long run if you are fighting at home with the enemy fighting far away from theirs but not they you will suffer heavy losses and live in a condition far from what most of us can imagine or are prepared to do.
What exactly would you, special forces or the government be able to do, to force them to comply with whatever order it is you are trying to impose?
You defend your rights with guns, not aircraft carriers.
It doesn't feel right that higher levels can interfere in lower levels in matters that does not affect them. We're seeing this right now in the EU, with various states trying to have their ideas promoted at the level of the EU as a whole, i.e. other nations, which clearly doesn't work because people have different cultures, traditions, etc. That's one of the reasons why Britain left.
The idea that people with handheld guns are going to take on a government with nuclear capabilities is an absurd fantasy.
I'm a supporter of the second amendment. There is plenty of justification for supporting the second amendment without entertaining absurd fantasy scenarios.
There are plenty of reasons to own firearms which have nothing to do with defending yourself against the government. When seconds count, the police are minutes away.