Prime Minister Sanae Takaichi captured a supermajority in February 2026 by pledging to keep immigration at a hard cap and boost defense. Her victory echoes “Sakoku 2.0,” a term that recalls Japan’s historic isolation.

The ruling party claims Japan will seize 30 % of the global physical‑AI market by 2040, deploying robots in care, food, and construction. Yet Japan lags in AI software and component production, undermining that promise.

A zero‑immigration stance forces Japan into a grim demographic trajectory. By 2030, the elderly‑to‑worker ratio will reach 60 %, and pensions will shrink 20 % by 2040 under a “macroeconomic slide.” Rural towns risk disappearing, while mega‑cities absorb the remaining population.

Without foreign labor, Japan’s zombie‑company ecosystem will collapse, sparking a consolidation wave and a wage surge. The country’s financial stability depends on this painful transition, not on a future influx of immigrants.