For those of us, unfortunately, in the imperial core, what steps should we take to stop a US war with China over Taiwan? I've honestly been pretty scared since the war in Ukraine started knowing that China is next. We must avoid this at all costs to save the thousands of Chinese lives that will be sacrificed by the west in their bid to reestablish a unipolar world.
While I'm not discounting the achievements of the anti-war movement in support of Vietnam, the war still waged on for years. The same with Iraq. What should be done differently?
You must organize with like-minded people, which is to say, anti-imperialists, to undermine the war machine. You will not find these people among the major political parties, both of which are imperialist.
Once you are with a group of people, you can strategize around what to do more specifically. Holding rallies, building your organization, creating or joining a like-minded coalition, direct actions, etc.
You can't do anything meaningful alone.