I have a natural aversion to lists of the nature in the op. To me they are the other side of the same coin vis a vis the subject(s) they object to.
There is a lack of thought and or evidence in a simple lisitng of gripes. I do not feel at all restricted in voicing my thoughts, opinion, feelngs, approval or disapproval.

I struggle to understand why others would? What actually stops anybody complaining on a factual basis if all the foreigners have indeed taken all the jobs? Why is that not something that can be mentioned? I fail to see what is stopping it. Unless of course it isn’t actually supported by the facts, thus it is whispered about in groups of like minded folk, reinforcing a sense of injustice yet apparently not voiced openly (expect it is…!) due to some imagined restriction. Which restriction in itself further reinforces the sense of injustice thus perpetuating and giving life to self sustaining feelings of disadvantage, injustice, anger and ultimately hatred and violence of varying kinds. All, at least in part, born out of non existent restrictions.

It doesn’t help when politicians play to those same emotive imagined restrictions for their own ends.

But hey ho twas ever thus and i suspect will continue in the same vein whilst humans roam the planet.