I don't put too much stock in that kind of talk. The government will not easily let go of its monopoly on violence. There will always be police. It may look different in a year, but it will be there. Militias will always be considered "extremist."
Yes the end is always near and hysteria rules the news but it's the extremist talk that is driving the gun and ammo panic/shortage. On the bright side, gun manufacturers and their suppliers are working overtime.
The local Academys in central Texas are still mostly dry. Bass Pro is too but some items are available on what might be the worst web site/sales system on the planet. If it says "in stock," be ready to wait a week for it to ship to the local store.