It is like playing chess. When you know what the players and pieces do you will know that this is what they have to do. You know it, I know it, and pretty much the rest of the world knows it. Stop looking at it so superficially. This is Geopolitical chess, not checkers.
Brexit is now happening. Do you realize how many countries, islands, provinces are owned by Britain? Now that they have pulled away, the money pouring into the EU's coffers is halted bigly. If you were Jean Claude Junkers, the son of the family that made Hitler's luftwaffe, what would you do next? Think. It is just chess. Would you have a freakout and tell your immigrant horde armies to start the trojan horse war? I would. And then I would claim marshal law and start some more sidetracking events until I could weasel my lawyers into siphoning off some of that cash in a hidden way. Mainly by telling all of the people who send their taxes to Britain to start skimming.
You don't understand what a big wound Brexit is for the EU.