I don't think anybody takes what Trump says seriously at this point. He'll say one thing than another, it literally changes day to day. What matters is that the US is exhausted now. They just lost a major war against Iran, their weapons stocks are depleted, and China has them by the balls. So, Trump is doing a bit of posturing right now, but it's not going to translate into anything material because the coffers are empty.
And I can't see Russia taking out the bridges because it's almost certain they plan to use them. The goal of the Europeans is to provoke a big reaction right now so they can rally their public. The support for the war is at all time low in Europe right now, so they're trying to put pressure on Putin to do something big to start scaring people how Russians are coming for them.
Artemov explains everything correctly, and reading his book really helped me see how American propaganda machine works a lot more clearly. The direct inspiration from the nazis and the evolution of the narrative was very interesting to read about as well.