well if you are hunting down fishermen from EU countries because they fish in uk waters, you are then a nazi, you are a socialist benefitting a small english based fishing cartel, and racially disadvantage european fishermen.
The EU creates winners and losers, germany btw. has to carry the biggest logistic loads regarding road maintenance.
EU is something great a bigger market bigger economy, while nation states are backward and racist trash.
I'm not a supporter of the Eu, but I could play the devil's advocate and ask if you really believe that everything should be free and unregulated.
Currently, you need licenses for fishing, even with your little fishing rod in a nearby lake. You need a license to sail, to shape the riverbanks and so on.
What if you could do whatever you wanted without any rules? People would be fishing by electrocuting fish with car batteries, throwing fireworks, sail speedboats wherever they please disrupting wildlife.
EU regulations are usually stupid but I see the need for at least some licensing.
people can't do whatever they want, god has natural regulators, either through economic and evironmental disaster or by beast, there where once rumers of kraken killing sailors and fishers those are true