Earlier quoted context omitted.
Look at it this way: if you're going to lead an illegal insurrection to overthrow what you think is a tyranical government, why do you care what the gun laws are?
A necessary precondition for a tyrannical government is a power imbalance between the people and the government. Allowing citizens to own arms that are in the same league as what the government uses prevents this.
We don't live in a world where the people and the government can reasonably expect to have symmetrical physical warfare capabilities. This argument is irrelevant today.
The only area where the exists any form of symmetry would be cyber weapons, not physical.
Defending against other individuals is still a viable argument, and is the only reason I think we need to be careful about how far we go with regards to gun control, but that has some tight limits and I think we can find more effective solutions than guns if we put some effort into it and take it seriously.