Hello all, Irish person wading in here with my two Euro cents.
The EU has benefitted my country enormously, without question - without it we'd be a damp, green nothing burger off your west coast pumping our young jobless people into your country and anywhere else that would have us. However, there's a lot of misunderstanding here about EU law.
We in Ireland are preparing national legislation to enact the EU immigration pact which is a directive from the EU. I have a lot of personal reservations about this pact as I think there are elements of it that are very cruel to asylum seekers (it has a "Rwanda plan" like your last government proposed in it, for example, to reduce the number of asylum seekers).
The point being the EU does impact on national law. EU regulations must be implemented across the board (such as the EU regulation on roaming charges) and directives are the way the EU tells us to achieve a certain goal within our country. It's asylum seekers today but it will be something different next year.
Overall I remain pro EU, but with regards to the above, now that I see something very important being directed to us by the EU, I can actually understand why people would not want this influence on their own national legislation.