Yeah right its non eastern european "fishermen" that like to haul out some nice fat pike or carp for christmas or easter dinner. And its well out of order to thraten people with weapons just for the sake of a netful of fish. A skilful poacher doesnt show there hand so readily. Theres angling laws and customs in place which the immigrant's seem happy to ignore, at least as far as taking and keeping coarse fish is concerned.
We hear a lot of talk about how the immigrants are good for the national economy etc I dont know how much truth there is in that or if its just internationalist rhetoric and rationalisation to explain why they are here to take advantage of our stronger economic situation. But even if its only a few that do this sort of fishing, the disregard for British customs etc does create a bad feeling against all the immigrants who are here, most of who (we are told) are law abiding etc. That isnt racist or xenophobia by the way, just say it as it is. Just like if a wave of Brit's went to poland and destroyed "mary" statues at every oportunity, or went in droves into the swedish wilderness and stripped the trees and bushes, dumped rubbish everywhere and caused forest fire's, it would offend there cultures and cause understandable resentment.
Where have you been living all your life
Theres been pretty nasty battles with water watchers and gamekeepers against poachers for donkeys years.
And lets not go into what us brits can be like abroad.
Us nice british folks are just as capable of being downright evill as any easten europeans.
As long as theres a decent profit to be made it will continue to happen.