Trump would often get things right but for the wrong reasons. I call this the "Donald Trump stopped clock principle"
Applies to many other entities, too.
The reasoning is dead-simple obvious - becoming reliant on a nation-state which does not share your values and shared-future is a foolish idea.
Further even, “the haters” for lack of a better term - spent his term calling him a Putin-Puppet so why would he be suggesting folks decouple from Russia? The only thing coming to mind on that note would be a they-do-the-opposite level 33rd Dimension Chess move a la the Obama-Republican skit from Key & Peele.
Uncharitably, this just reads like cope. A grade school inability to admit your rival has the ability to be intelligent and correct with their own legitimate belief system. Again, like the K&P skit.