It's better to swap Monero on not centralized exchanges and be calm and happy 😅

a form of guerilla warfare

Using Monero XMR as money has many advantages, it doesn't have to have anything to do with rebellion or revolt. Sellers who accept XMR get their digital money sent to their wallet immediately upon purchase and can use it. There is no bank in between, they don't have to count change and can use it themselves for purchases worldwide. It simply makes sense to use Monero, no matter what color the market is in your jurisdiction.

black or grey economy

A simple example: A Rastafarian from Indonesia buys cannabis products in the Netherlands and pays in Bitcoin. This is much more dangerous for him than paying for the purchase in Monero. Indonesian penalties are draconian. But most of us here would probably agree that the buyer should have nothing to fear.