While there is definitely good reason to believe that is happening, it should be noted that multiple Chinese-American scientists have been subjected to meritles

While there is definitely good reason to believe that is happening, it should be noted that multiple Chinese-American scientists have been subjected to meritless witch-hunts. See e.g. https://www.sciencemag.org/news/2015/11/feature-chinese-american-scientists-crosshairs https://www.sciencemag.org/news/2015/11/feature-chinese-amer... and https://www.nytimes.com/2018/05/17/technology/sherry-chen-national-weather-service.html https://www.nytimes.com/2018/05/17/technology/sherry-chen-na... for examples.