Youve answered your own question really. The solution to attacks on pay and conditions is stronger unions, as the solution to a housing crisis is public intervention. The right create the crisis and set up the scapegoats. The irony is that the government responsible gets off the hook, which is part of the idea. I would be interested to discuss moderate migration controls from a left POV as part of a protectionist package but thats not whats on offer. Most of the people frothing about this ( i live in a high immigrant area btw, dont have consistent work, yet manage to not be bitter about it), try talking to them about housing policy, imvestmemt etc. "Lefty crap" innit, they wanna slag off foreigners. Ghis country has consistently voted for capitalism, doesnt seem to like the results, so is channeled further right. Its a pretty standard historical dynamic. Then people try to bollox whitesplain it away, make assumptions about motivation for criticising racists. The right say its pc gone mad to say racism is racist, and too many liberals and leftists have concocted that its an attack on the working class to do so.
Race hate is stoked, sustained and legitimised by the ruling class through their disinfo press, the most consistent examples being the bourgeois Mail and Express. It permeates all classes, though most of the victims are probably working class, something the whitesplainers may he forgetting.