You're understanding of average republican motivations is all off, spend some time steelmanning some republican arguments unless you're just virtue signaling rhetoric.
Average republican sentiment has changed significantly since Bush.
If you'd been accurate with republican motivations, and mentioned Obamas role in the war mongering, you would have had a credible case. A reach IMO, but a reasonable hypothisis.
As it stands, you're just burning a stawman.
Could you elaborate on how the "average republican sentiment has changed significantly since bush"? Not saying it hasn't I just don't understand how it has.
My main point was that trump announced this to provoke violent groups into violent actions. This in turn will likely lead to him having a 9/11 moment where he can boost his popularity as he can act like a tough leader.
At best, trump does these irrational things for attention. Which I suppose is infinitely worse.