The leader of Japan’s largest opposition party has criticized the concept of “Japanese First” policy — advocated by small, right-wing party Sanseito — saying foreign residents are critical to maintaining Japan’s economy and calling for a multicultural society that respects minorities.

Constitutional Democratic Party of Japan leader Yoshihiko Noda made the remarks while campaigning in Sendai and in Ibaraki Prefecture earlier this week ahead of Sunday’s Upper House election.

Noda warned that division and conflict were growing around the world, sowing the seeds of war.

“Unfortunately, in Japan as well, political forces have emerged that are stoking division and conflict through their rhetoric. If there are political forces seeking to gain political points by excluding foreigners, I will firmly oppose them,” Noda said during his Sunday appearance in Sendai.

The issue of foreign residents in Japan, rarely a topic in election campaigning, has now become a hot topic of debate as Japan’s foreign population continues to grow.

Sanseito has adopted “Japanese First” as its main slogan and the party’s Upper House election platform. The platform includes a promise to implement immigration restrictions limiting the number of foreign residents to 5% of the population in each municipality.

As of the end of 2024, the number of foreign residents in Japan stood at a record 3.77 million — up 10.5% from the year before, but still only about 3% of the total population.

It was obvious, Noda added, that Japanese society could not function without the help of foreign workers in manufacturing, health care, construction and public transportation.

“For example, in the field of nursing care, it’s estimated that 2.7 million workers will be needed by 2040. That’s 15 years from now. Currently, there are about 2.1 million workers. But due to harsh working conditions, new people are not entering the field, and some are leaving. Closing this gap of 600,000 workers will be extremely difficult,” Noda said.

While Noda did not specifically name Sanseito in his speeches, he criticized the concept of placing restrictions on foreign residents just to prioritize Japanese people, especially at a time when such residents are already contributing to Japanese society.

“Japanese first. Japan first. If that's the case, isn't (accepting foreign residents) for the greater good of our country?” he said during a separate rally in the city of Kamisu, Ibaraki Prefecture, on Wednesday.

“When you go to a convenience store, isn't the person selling you rice balls a foreign employee? Aren't there a lot of foreign workers in manufacturing plants? Aren't there a lot of foreign workers in construction sites and public transportation right now? Aren't we relying on foreign workers because of the shortage of caregivers?” Noda said.

The CDP leader suggested that the idea foreign residents receive preferential treatment is a misconception that may be rooted in the fact that many Japanese are feeling hardship in their daily lives, rather than an indication of such residents actually being treated favorably.

If the reason for their discontent is because wages aren’t increasing as much as price hikes, resolving those issues is what needs to be done, he said.

“That’s why we, the opposition parties, including the CDP, need to unite and overthrow the LDP-led administration.”