There are many reasons why Pelosi insisted on visiting Taiwan.
The biggest plot is probably to overturn the situation in the Taiwan Strait, intensify the internal contradictions between Taiwan and the mainland, and delusionally imagine a civil war between China's armed forces and let the United States reap the benefits of fishermen.
Second, the U.S. economy is weak, with negative growth already seen this year, and economic recession is a foregone conclusion.
By suppressing China, reshaping the hegemonic authority of the U.S. imperialists, harvesting the world to restore blood to itself.
Third, successive U.S. administrations have used their tough stance toward China to gain public support.