Absolutely, you'll need to own guns and be willing to use them. As some decide to not respect your right to life, you either to learn to reciprocate, or perish.
I feel like you need more than guns, as there are already groups preparing for this sort of thing are not only well armed, but appear to be well armored as well. Ofc, the sort of thing I imagine would counter that well could probably land you an open file with the FBI if you do too much research into them.