The most important countries -- China, Japan, Canada, Mexico, India, Germany -- know he's a buffoon, they know he's trying to "Art of the Deal" them. So they're taking their time. They'll sign agreements at some point, but they're not going to bend over for him.
In the end, the material improvements will be marginal, and nowhere near worth the damage he has caused to our global reputation and influence. Every trading partner is moving away from us, and that will continue. They're even moving away from the dollar and Treasuries. That could cause us real damage, and they know it. But they're not our friends any more.
Is there a more destructive, stupid, self-inflicted wound in our history? Not that I can think of.