I think the "populist" backlash is more nuanced than "those dirty disgusting deplorable lower class scum" losing their jobs and families and homes while some snobbish elites plan their lives for them.

For example, see what Douglas Murray says about the UK. Is it really so wonderful to have regular marches calling for the mass obliteration of Jews worldwide in the UK, while you give refuge to known and sworn terrorists? And the UK authorities even favor these marches and protests, it would seem. And they seem to be on the side of promoting pedophilia as well. And the wonderful EU wanted to abolish all kinds of UK cultural icons, like your red double decker buses, apparently. This is just not only a matter of the "filthy working class morons" on the bottom of the pile not being suitably appreciative of what "great stuff" you and the other elites are supposedly doing for them. Like mass surveillance and 15 minute cities and the like.

As much as the progressive mob in the US would like to stop it, the melting pot is still operational in the US, in spades. This is not something that is particularly evident in the UK. But if one looks at the assimilation of Muslims and East Indians and East Asians in the US, things are moving ahead at a record pace. However, things are more complicated than just "immigration". There are huge numbers of criminals being imported willy-nilly into the US, on purpose. Venezuela has even seen a 72% reduction in crime rates over the last couple of years, apparently for this very reason. There are tens of thousands of military age young men being given special treatment and smuggled in under special circumstances by the government in the US. No one really knows why. The US has also created the world's largest sex trafficking network in the last few years associated with the influx of unaccompanied minors, and no one seems to care; the current administration is apparently complicit in this. The court system and the election system in the US have been corrupted, as well as the US military and education systems. My own public library has child pornography in it. If I were to have this material on my person, I could be sent away to prison, yet children can view it and check it out without restrictions. There is a deep cultural rot in the US, and we even see elements of it here on Heterodox STEM, like the Protocol Review and Monitoring Committee. So I do not think that the rise of populism in the US, at least this current round of it, is just because the blue collar workers are upset that inflation is eating them alive. And I do not think the working class really has any issues with illegal immigrants that come to the US to work, because there are still lots of jobs available. Some formerly preferred victimhood classes in the US are noticing their resources are being taken away and given to illegal immigrants, and this causes some obvious disquiet. But my impression is that this current US populist movement is based on a culture war where people are upset that so much ground has already been ceded to those of the woke ideology. People do not like a justice and legal system that favors criminals over victims. And all kinds of other similar things. People have just had enough. And it really is not about jobs being "stolen"; sorry.