The whole thing with Brexit is that the UK is even more rabidly neoliberal than the EU. The tories did it because they thought that the EU had too many regulations, they literally rejected it because of the only good things it did (selfishly to its own first class citizens of course)

Now one could argue that the best scenario would be a socialist Ireland, but given their current position that could literally get them absolutely crushed. They would have to align with the emerging world order which would be a sufficient casus belli for most EU jerks

So yeah under this paradigm rejoining the EU is… let’s say, the institutional lesser stupid