If you were against the Iraq War then you could demonstrate in D.C. If you are against a Russian invasion as an American you can’t protest next to the Kremlin. You have to protest against aiding arms (not necessarily humanitarian aid), which might look like “aiding Putin”.
“Pacifism is objectively pro-fascist. This is elementary common sense. If you hamper the war effort of one side, you automatically help out that of the other. Nor is there any real way of remaining outside such a war as the present one. In practice, 'he that is not with me is against me'.”