"Every time Trump or members of his administration have lashed out at Europe, including Ukraine, Europeans have absorbed the blow with a forced smile and bent over backwards to flatter the White House." (...)
"While a systemic answer to Europe’s security conundrum is not in sight, Europeans do have the levers to prevent Ukraine’s capitulation and create the conditions for a just peace."
See, that just seems like "it's ideology, but also billionaires are there". European businesses don't want tariffs, but there's still European tariffs. The simplest explanation would just be that it wasn't their call.
It feels like you're starting with your conclusion and then building a story about it to end at whichever facts are appropriate for the instance. It'd be more convincing if you could put it in a form agnostic of where and when it's being applied. Like, when do billionaires want tariffs, and when don't they? Then, does it actually predict policy decision?