Tell that to former CIA director who wrote that Guardian piece.
On the contrary Trump will do whatever he wants to do, there is no "won't be permitted" that's very naive.
Yes it does, that's why we had a coalition bombing Iraq, Afghanistan, Serbia etc. Today there are multiple European states patrolling the Red Sea as the Houthis fire rockets at shipping. The US relies on European bases to refuel and store weapons and so on, if that permission was gone the US would face huge practical obstacles.
Well he avoided having to deal with big foreign entanglements last time, this time the phone is going to be ringing off the hook the day he takes office.