Japan is grappling with rising anti-immigrant sentiment and online hate speech as the country’s Muslim population nearly doubles over a five-year period, according to demographic data. Recent public surveys and reports highlight mounting societal anxieties over national identity, which experts trace to a long-standing myth of ethnic homogeneity that overlooks indigenous populations like the Ainu and historical minority communities.
Demographic Shifts and Rising Anti-Immigrant Sentiment in Japan
The number of Muslims living in Japan grew from 230,000 in 2019 to 420,000 by the end of 2024, primarily driven by workers arriving from South Asia and Southeast Asia, according to recent figures. This growth coincides with broader demographic changes, including an increase in mixed-race Japanese children—known as “hafu”—whose population reached 4.66% in 2023, up from 1.3% in 1987. As birthrates fall, these shifts have intensified debates among politicians and residents regarding racial purity and “Japaneseness.” Hate speech has increasingly surfaced on social media platforms, while mosques have faced abusive messaging.
Public opinion polling reflects these growing societal tensions. An Asahi Shimbun telephone survey published in November found that 66% of respondents viewed tougher immigration policies under Prime Minister Sanae Takaichi as promising, while 56% stated that Japan needs fewer visitors and immigrants. Similarly, a Yomiuri mail survey published in December showed that 59% of respondents opposed accepting foreign workers, with 68% claiming that an increased foreign population worsens public security, according to the respective data.
Social Media Campaigns and Economic Anxiety
Online hostility is frequently fueled by misinformation and targeted digital campaigns. According to media reports, some anti-foreigner content on social media has been produced by paid creators and may involve artificial intelligence generation. A job posting on the Tokyo-based platform CrowdWorks sought creators for videos labeled “China-critical” or “anti-China.” After drawing online scrutiny, CrowdWorks removed the listing on December 3, stating it likely violated guidelines prohibiting the misrepresentation of facts or content that could lead to discrimination.
Did you know? Job postings discovered on CrowdWorks offered payments ranging from 1,500 to 5,000 yen per script for tasks requiring applicants to “love Japan and dislike China,” demonstrating how economic incentives can drive digital anti-foreign sentiment, according to media reports.
Many online narratives focus on economic anxieties rather than political ones, alleging that immigrants speculate in real estate or neglect health insurance premiums. However, government figures complicate these claims. A Ministry of Land, Infrastructure, Transport and Tourism survey found that while overseas property purchases in Tokyo’s 23 wards doubled in the first half of 2025, the breakdown showed 192 buyers from Taiwan compared to just 30 from mainland China, challenging assertions that mainland speculation is the primary driver of rising housing prices.
Historical Ties Between Japan and the Muslim World
While contemporary discourse often frames immigration as a novel challenge, Japan shares a complex, largely forgotten history with Islam that predates modern migration patterns, according to research by Japanese scholars of Islam. Following Japan’s victory in the 1904–05 Russo-Japanese War, the nation emerged as a non-Western model of modernity. This victory inspired false rumors across South Asia and Southeast Asia that the Japanese emperor was planning to convert to Islam, leading a newly modernized Japan in anti-colonial resistance against Western powers.
Imperial authorities leveraged these perceptions as part of their geopolitical strategy. Military intelligence figures supported Pan-Asianism, a movement seeking unity among Asian peoples under Japanese leadership. Secretive groups like the Kokuryūkai, or Black Dragon Society founded in 1901, forged relationships with Muslim nationalists in Russia and the Ottoman Empire. Figures like Omar Yamaoka—born Yamaoka Kōtarō—converted to Islam as a strategic act to travel through Muslim-majority regions and report back to the military while remaining committed to Japanese imperialism, according to historical accounts.
Frequently Asked Questions
What is driving the growth of the Muslim population in Japan?
The Muslim population in Japan nearly doubled from 230,000 in 2019 to 420,000 at the end of 2024, driven primarily by workers arriving from South Asia and Southeast Asia, according to demographic records.
How do recent surveys reflect Japanese public opinion on immigration?
An Asahi Shimbun survey in November found that 66% of respondents supported tougher immigration policies, while a Yomiuri survey in December showed 59% opposed accepting foreign workers and 68% believed foreign residents worsen public security, according to published poll data.
Did Japan historically engage with Muslim-majority nations?
Yes. In the early 20th century, Japanese military intelligence and Pan-Asianist groups like the Black Dragon Society cultivated networks with Muslims across Asia, China, and Russia to build anti-Western alliances, according to historical research.
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