Well I _am_ Swiss.

You missed the part where we _voluntarily_ chose to enter into a contract with the EU that does in fact beholden us to EU laws.

We can go back on that contract, but breaking your word is something that people remember for a reason.

Does the contract contain a section on breaking the agreement?

Maybe not a legally smart move, but morally... when was it signed? Perhaps way before some EU countries decided to stop enforcing their borders beyond the performative level? And since these agreements basically force countries (especially rich countries with socialist systems) to somewhat share the burden of that choice they didn't make, I don't blame them in the least.