The plaintiffs claim TSMC favored hiring workers from Taiwan and mainland China, often excluding non-East Asian applicants. They allege that job fair invitations, internal documents, and even key meetings were conducted in Chinese, marginalizing American employees. Some U.S. workers said they were openly mocked as “lazy” and “stupid” by Taiwanese managers. Plaintiffs also claimed that nearly half of the workforce at TSMC's Arizona fab is employed on foreign work visas, and that American employees were gradually pushed out.