And working class white voters, or actually working class in general, including black voters, who have been shat on for over a decade by wokeshit Demonrats are too valuable a demographic not to care about. So I think they will at least be trying to court that demographic, if not actually doing a good job of actually tightening immigration (Trump notoriously has done a worse job than Obama at deporting illegals largely because of his retarded clown antics throwing the whole deportation pipeline into chaos).
No, the working class isn't a "valuable demographic" in electoral politics. The two parties in America didn't just forget to appeal to the majority of the country, and countries which once upon a time had a working-class party (like Labour in the UK) didn't just forget their history and accidentally switch to representing the numerically much smaller upper-middle class. Politicians don't compete for votes in the sense of pure numbers so much as they compete for the slimmest majority of votes they can get to win. There's a limited number of candidates and you never make it onto the field without money. To even be a politician in any race that matters, you have to sell yourself to a billionaire or faction of elites before you've made your first campaign promise. Joe Blow from Nebraska may have a great policy idea, but his neighbors aren't voting for him because that vote will be a waste; instead they'll vote for Asmodeus (D) or Azazel (R) because they got on the CNN or Fox primary debate. As it turns out, Asmodeus and Azazel agree on many things. Stated things they agree on are that we need to prepare to have a war with China, we need to send more money to Israel, and we need to help America's company invest more into AI. Unstated things they agree on are that tax rates at the top will never go back to what they were pre-Reagan, that unemployment needs to be kept high to depress labor costs, and because they're both invested heavily in real estate, they have an interest in housing prices being high. But now that the two candidates have been selected, the working class is now graciously offered a voice in choosing between them. So Azazel might make certain promises to gain an edge over his competition at this point, like releasing Epstein files, arresting Asmodeus, or building a wall, but he can literally not do any of that because the only real consequence to not doing it is that people will vote Baphomet (D) next election cycle, and Baphomet is also planning to break his promises. But even that worst-case scenario isn't particularly likely:
because the working class knows it doesn't make much difference for it which of the preselected candidates are chosen, partisan allegiance is treated as something like a religion or football allegiance, something meant to be reflexively identified with rather than thought about as something having serious consequences, so most people who bother to vote just vote for their party no matter what.
Another way of saying it is that politics is an instrument of class rule. The ruling class is where it's at because there's a working class at the bottom, and this has been the arrangement for the entire history of liberal republicanism (and longer, obviously). The working class is the people who are ruled, not the people the political establishment was created to serve. Any "courting" of the working class happens in promises only, or with issues inconsequential to people who actually matter (like which bathrooms transsexuals get to use). That's why I doubt there's any plan to actually stop illegal immigration, unless a fun surprise is in the works involving citizens getting bused out and forced to pick fruit for $3.75 an hour.
Also, terrorizing illegals and making an example out of some periodically has the effect of disciplining them so they don't make too much trouble at work or agitate for civil rights.