Yes, but how can you be sure? Testimonials? People will say anything in desperate times.
The time to apply the test is NOW. Talk to your neighbors and learn their political leanings. Then, if there is a collapse, you'll know who is really on your side. Personally, I would never supply a weapon or ammo to a lib or moderate even if he claimed conversion from now until doomsday.
I would not try to change your mind. I just wrote the essay to be fodder for thought, while guns are still cheap and available.