Of course that's just the EU budget. The advantage that all countries but particularly France and Germany (and, for another couple of weeks, the UK) get from frictionless trade are enormous.
https://m.bpb.de/nachschlagen/zahlen-und-fakten/europa/70580...
The elites will try to impose it from top to bottom, and when they'll encounter resistance they'll of course blame it on populism/Russia malevolence/the electorate being stupid and the like, that is if they'll decide to go to the polls to impose that further integration (which I have very big doubts they will).
But who knows if it would have been in Turkey’s own best interest to become a member state.
A lot of EU states never really wanted Cyprus in until the dispute with the North and with Turkey was resolved. But Greece insisted on Cyprus being allowed in before that, and threatened to block enlargement to other member states if it was not, so the rest of the EU didn't have a choice. There is no equivalent country demanding Ukrainian admission. Even if some EU countries might like Ukraine to join, nobody is going to say "Unless you let Ukraine in, we will veto Montenegro/North Macedonia/Serbia/Albania/Kosovo/etc's admission"
And Russia will quite possibly take the idea of Ukrainian EU membership badly – although exactly how Russia reacts depends on what is the state of EU-Russia relations at that point of time. Given that Ukrainian EU membership is decades away, if it ever happens at all, who knows what state EU-Russia relations may be in by then.