Europe has a much bigger population than Russia and a successful industrialized economy several times larger. Most of Russia is still an impoverished Stalinist shithole. Russia has vast mineral and oil wealth and should be a wealthy country, but it’s a corrupt, mismanaged and nearly bankrupt nation.
If Europe is not willing to spend enough of its vastly superior wealth to defend itself from the Russians, let the Russians have them.
I see no reason why I should be paying 40 percent taxes, plus buying my own medical insurance, to defend Europe when they are unwilling to pay for a small portion of their own defense.