I build Linux routers for my day job. Some advice:
-
your firewall should be an appliance first and foremost; you apply appropriate settings and then other than periodic updates, you should leave it TF alone. If your firewall is on a machine that you regularly modify, you will one day change your firewall settings unknowingly. Put all your other devices behind said firewall appliance. A physical device is best, since correctly forwarding everything to your firewall comes under the "will one day unknowingly modify" category.
-
use open source firewall & routing software such as OpenWRT and PFSense. Any commercial router that keeps up to date and patches security vulnerabilities, you cannot afford.
America isn't even the most democratic country in the Americas, but that's clearly not the point they're making.
If the title was "...end of world democracy" you'd have a point but given how much fascistic rhetoric and policy has increased around the world since trunpism it's fair to say many countries are following the US lead here.