Here in the USA, Trumpists are very hostile towards immigrants coming from the Mexican border to the point where they infamously proposed to build a wall. The Biden administration is better in-name only, and has kept the concentration camps at the border.
Why is there so much hatred toward these immigrants? What is the material cause of this?
The ruling class needs that undocumented labor to exploit, and needs to keep them as precarious and endangered as possible so they don't demand better pay or rights.