Catcher mate, I was a water baliff for many years......I had to deal with every kind of idiot that ever picked up a fishing rod and what I know is, immigrants are the least of our problems when it comes to fishing
I have found fixed lines set up by fish poachers and I have also sat out and waited for them to return, I didnt blame the fact that they were immigrants......they had their job to do and I had mine, much like any keeper/poacher type situation.
I have jumped over a few fences many years ago with my dog so I am no different to them, what I DONT approve of is destruction of hab