I imagine he sees it as similar to expecting South Korea to pay us for the troops we have there.
The question isn’t so much being reimbursed for it as how much we should be projecting our military strength with troop placement around the world.
I quite agree, I just don't want to see the vital question being influenced in the dark recesses of Washington calculation by venality. Consider what politicians do in legalizing then taxing nicotine or marijuana.
Does the tail start to wag the dog?