

I think what is happening is that Ukraine believes that signing the deal will result in a range of outcomes from neutral to positive, depending how and when the US renegs on their side of it. But without the deal the outcomes range from neutral to very negative, so making the deal is the clear right move even if you believe it won’t do anything.
The man wants to make deals, right, so make a deal. (warning I’m an American and know just enough about Canadian government to be dangerous)
“Join” the United States of America under these conditions:
Please make this deal. Our governments are all too old to work great in this age but maybe we can forge a new design fit for the 2000s if we erase most of it and start fresh.