The West would rather threaten human extinction than actually do diplomacy. This is just the progession of imperialism against the Global South and Russia.
Russia has already put down the frothing at the mouth Ukranian govt. So now the US is going to do the same thing to the rest of Europe and have them become proxies in the American assault against Russia. The EU will let this happen because they are also a bourgeois dictatorship.
Any western libs who deny this just want to see dead ukrainian children fight for them. The West will not win, only throw tantrums.