Check the stats!!!
:::歡迎蒞臨僑委會全球資訊網::: (archive.org)
Overseas Taiwanese Total population
1,944,178
Regions with significant populations
United States 1,002,000[1]
Indonesia 632,000[2]
People’s Republic of China 404,000[3]
Thailand 290,200[1]
Brazil 90,000[1]
Canada 128,885[4]
Japan 303,000[1]
Vietnam 99,350[1]
Singapore 81,000[5]
Australia 190,020[4]
Malaysia 340,090[1]
Brunei 63,000[1]
Philippines 99,000
South Korea 31,000
Costa Rica 69,000[1]
France 89,500[1]
Argentina 68,000[1]
New Zealand 89,000[1]
South Africa 75,000[1]
Germany 45,000[1]
United Kingdom 96,000[6]
Vietnamese has more but not by that much relative to the popularity of Pho restaurants. Overseas Vietnamese - Wikipedia
Canada has 240000 overseas Vietnamese, which is double the overseas Taiwanese. Vietnamese has 100X more restaurants.