As UK showed, leaving EU is hard and EU will fight you on it as well as seek to penalize you
The EU will fight you? If Texas tried to secede from the US, the government would send in the military. The EU "fought" them by not giving them a sweetheart trade deal on their way out the door?
It was super easy for UK to leave EU? No one tried to stop them. The ”hard” part was that they wanted to keep some benefits of the membership after canceling the membership.
It was only hard because UK wanted to stop immediately to participate to budget while continuing to benefit from already agreed multi-years policies.
Of course leaving the EU is hard. Membership has a significant effect on regulation and governance. The fact that something is hard also doesn’t mean you aren’t free to do it.
It being “fought” or countries being “penalised” is a matter of opinion but not one I share.
How, exactly, did the EU penalize the UK for leaving?
Please, elaborate, I'll be waiting.
Sounds like EU deliberately evil?
EU didn't fight UK. UK fought EU to not lose their exorbitantly privileged status and benefits while leaving the club itself. They wanted to have their cake and eat it too. When they realized and decided that they will get none of the benefits, the finalization of the exit took merely weeks. EU is a huge privilege / opportunity for smaller countries. EU-6 doesn't need the other ones to be the second biggest market. If Hungarians want out, it can be done by the end of 2026 and you can enjoy being a proper vassal to neo-Soviets by 2027.