Keep repeating this nonsense as much as you like, but proper research on this from the LSE and others showed an effect of 0.4% from immigration on the wages of low paid employees over a ten year period. Quite simply, you are repeating lies you have been fed.
There lies the problem.
For as long as people ('experts') keep spouting the macro, they neglect the nuances of the micro at their peril.
Perhaps on the macro scale immigration has positive effects, is a net contributor to the economy etc etc, but it is not the macro that matters in these cases - it is the micro, the individual.
The individual is the one with the vote, equal in value to everyone else's vote.
The individuals within the communities who have been negatively affected by immigration couldn't give a toss that 'overall, when taken as a whole, looking at the wider economy etc etc etc' - they care about what they see themselves, what they experience themselves, the effects that they, personally experience, see & feel.
Whenever these individuals try to be heard & make their case, their dismissed with 'anecdote does not equal data' or similar.
Well, it does, to the individual.
And if enough individuals feel something, then use their equal value vote to make their voice heard - you get Brexit.