These people externalize evil.

The only people that embody evil are Nazis, fascists, and racists who adulate, materially support, and enact violence on behalf of that ideology.

Liberals are squeamish about embracing this evil, and would rather, through the depraved indifference of inaction and believing they have these fascists on a leash, enable its arrival and contamination into the rest of liberal society.

If Russia can be destroyed, they will know peace. If China can be destroyed, they will know peace. If Iran, If Venezuela, if if if... the list goes on.

Of course, this whole conflict is about cutting Russian gas from Europe, ensuring the US secures its energy market there. After which the goal was to bring Russia into a quagmire that hopefully weakens the Russian state - maybe Balkanizing it - so the Belt & Road Initiative is delayed or defeated.

The vision of the West is to plunge the rest of the world into servitude, poverty, and exploitation to maintain the "garden" that is Europe.