Never forget that Ukrainian Army under Zelensky was shelling innocent civilians (ethnic Russians) in the Donbass region of Ukraine.
To put it into perspective, it would be as if Texas, Arizona, New Mexico, or California had separated from the US, and Mexico was shelling civilians in any of those at the urging of another country, like oh, say, China for example. Would the US NOT invade Mexico to topple the government responsible? Ukraine started the whole damn thing.