The strategy is, "this will make trump feel good today." Trump is terminally online, or in front of a tv, never ending his media diet while simultaneously absorbing no real information about the world.
There is no strategy outside of that. They are a cult and sycophants lashing out at anything they enjoy being belligerent towards. In their minds, the abandonment of soft power is being strong by just throwing away all the mamsy pansy stuff "they" wanted.
Edit: sorry for the tone; I'm a bit perturbed.