It doesn't seem fair to require people to speak out publicly about every random, crazy things communicated by Trump and his regime. In my view, it gives legitimacy to his ramblings and certainly feeds into his narcissism to have people react.

It seems more reasonable and practical to speak out against his war once action has actually been taken.

(As a UK citizen, I don't even understand why Trump is being allowed to unilaterally start wars without Congress agreeing)