A number of European countries have PUBLICLY come out to say they are suspending cooperation on a number of different fronts. You can only imagine what it’s like in private.
We’re entering a multipolar world. That means more border wars, not less. Everything I’ve seen indicates more demand for American military and intelligence sharing, not less, despite the paradox therein.
Just general EU political news, I remember the UK not sharing some intelligence in Trump 1. I presume that a lot more of that happens behind the scenes.
I totally take your point around border wars, but I would expect to see substantial efforts to reduce the need for US intelligence, given the caprice shown by the current administration.