Any policy/weapon/tech used against an outgroup (e.g. brown people across the ocean) can and will eventually be used against the ingroup (citizens voting for it) by an inner ingroup.
Sooner or later any ingroup will itself be divided into an inner ingroup in power and a powerless outer ingroup who'll be treated just like the old outgroup.
A nation willfully ruled by war criminals will always become their final victim.
Americans need to start prosecuting their war criminals. This is the only way out of the quagmire.