The answer is, they need slaves. The foreign workers are suitable for slaves because they don't know the labor law well. As the birth rate is decreasing, there

The answer is, they need slaves. The foreign workers are suitable for slaves because they don't know the labor law well. As the birth rate is decreasing, there is a shortage of young slaves. It's a simple supply and demand situation. If you want to hire a worker, you have to pay more because there is not enough supply that satisfy the demand. I have no idea what the future Japan will look like, but for workers, it will be a good market until Japanese economy corrupt.