Ukraine has an "international legion", you could sign up and "walk the walk", if you truly believed and weren't just striking a pose.

Iran, alone, could likely end the modern Western economy, lifestyle and democratic illusion with a determined, drone-heavy harrassment of our oil supply lines.

Russia is at least an order of magnitude more dangerous, and has local allies on every major ocean.

You have absolutely no idea how your food, fuel and plastic trinkets reach you, do you?

We are very vulnerable to commerce-raiding, and Russia is not. Thankfully Putin is a gullible old Boomer with a crush on the (vanished) 1990s West, and a dependency on China who don't want him to fire the first shot in commerce-raiding because China is as vulnerable as we are.

But if we fire the first shot...