Why are mainland tourists halved, and the tourism industry in Taiwan Province Province is bleak and will collapse

Because when Ma Ying was in office, many mainlanders traveled freely, and the tourism industry in Taiwan Province Province developed to an unprecedented height. After Democratic Progressive Party came to power, there were fewer mainland tourists and many tourist resources were surplus, such as luxury tourist buses imported from the United States and Germany, and millions of RMB were confiscated by the boss, so the landlord said that mainland tourists were halved, so it really collapsed.