Trump has a weird relationship with countries that fund and support radical Islamists.
He's happy to take a 747 from Qatar and allow them to use USA facilities (why not train their pilots in Qatar), despite Qatar being one of the largest sponsors of Hamas -- billions of dollars in aid.
He locked the Afghan government out of negotiations with the Taliban, and ended up releasing 5,000 hardened Taliban fighters who tipped the balance toward the Taliban in their march to retake the entire country. Not only that, he wanted to invite the Taliban to a party at Camp David on 9/11.
Trump greenlit an attack on a USA base by Iran after the bombings, seeming to be ok with USA facilities being targeted as long as he knew in advance. This after Iran attacked a USA base in his first term, injuring dozens of military personnel although Trump claimed all they had were "headaches".
He allowed Israel to bomb the UAE, who are supposed to be one of our allies.
That's all I can think of at the moment. What a weird guy.