Europe has nukes, money, armies, navies, and air forces.
It doesn’t need us to defend itself.
Total non-US NATO defense spending is on a par with Russia (pre-2022 — I seriously distrust Russian figures for 2023 or 2024), but Russia gets more for the buck, so to speak.
Europe is FAR behind Russia in weapons inventory and production.
Nukes, Russia is ahead by over 10:1.