That countries have "No permanent friends, only permanent interests," is a famous dictum of diplomacy. Europeans, Canadians, and others will find this phrase very timely right now. The US, formerly someone they could think of as a friend and the source of shared interests, is rapidly becoming the opposite on both counts. It's speaking openly about breaking up the EU & annexation, and invasion of European territory. NATO's days look numbered.
Now the talk in Europe is of urgent military decoupling & disengagement from America. Well, if that is the case, surely future space cooperation is a prime target for being cancelled? Does this make increased space cooperation with China a better idea? It's worth considering.
There's a strong argument to be made that China is rapidly heading towards being the world's pre-eminent space power. They have credible plans for a lunar space base and deep space expansion. In America, the formerly glorious NASA has been gutted, and future space hopes seem to be in the hands of a bulls**t artist, who perpetually over-promises and fails to deliver. That's 2 reasons for Europe to change sides. The US is your military opponent now & their space efforts are in decline.
Plus, if China becomes the world's major space power, can Europe afford to ignore it?