Trump has attacked our allies all over the world with his trade wars, made life difficult for our allies in the Americas with his drug war/immigration nonsense, put our allies in the Gulf region in harms way by letting Israel be reckless with its attacks, and put other allies across the world in bad positions by letting the Strait be closed.
To be honest, I don't see us making it through the Trump presidency with any allies left. Why would anyone be cool with us again after all this?