Should Japanese encourage immigration?

Question:

Japan is facing a HUGE population decline! In the next 25 years, there will be a lot of elderly and not enough young workers to support them. Do you think they should open the gate to let more Chinese people come into the country? Do you think they will have time to come up with sophisticated robotic surgeons by 2050? More and more people speak Chinese in Tokyo, such as in major train stations. In a near future, perhaps everybody will speak Mandarin in Tokyo...

Answer:

Well, I don't think Japan "should" encourage Chinese immigration. Why does it have to be Chinese? If Japan decides to encourage immigration, much discussion is needed as to which race we will invite. Chinese is not the only race in the world.

But it's the fact that Chinese is the race which marks the highest increase as a group of foreigners in the last 20 years. There were about 200,000 of them in Japan in 1990. But now they are about 700,000. This is the highest increase.

And I think we will have more and more of them in the future no matter Japanese people like it or not as China is very close to Japan and has more than 1B people.

We can already see many Chinese working at a convenience store in Tokyo.