How very not-Japanese this would be.

LDP lawmakers: Let 10% of Japan be foreigners | Japan Probe:

"The Japan Times reports that a group of 80 ruling party lawmakers have created a plan calling for a huge increase in immigrants and the creation of an immigration agency:

“There is no effective cure to save Japan from a population crisis,” the proposal said. “In order for Japan to survive, it must open its doors as an international state to the world and shift toward establishing an ‘immigrant nation’ by accepting immigrants and revitalizing Japan.”

Headed by ex-LDP Secretary General Hidenao Nakagawa, the group of about 80 lawmakers drafted a “Japanese-model immigration policy” that they plan to submit to Prime Minister Yasuo Fukuda next week...

They are hoping that increased immigration would raise the ratio of immigrants in Japan to about 10 percent over the next 50 years. Immigrants currently make up about 1.0% of Japan’s population."