They seem to think capitalism needs more workers to grow despite mass layoffs occurring everywhere and wages not matching inflation for decades

That's why we need more workers, while inflation is rising worker pay remains stagnant which means the share holders are effectively losing money just by having it and the wages aren't going down fast enough to make up for it.

Only by mass importation of the brown hoards can the cost of labor be driven down to a more reasonable level where it's measured by grains of rice per day.