My partner is Chinese, so I'll refrain from joining the bashing or casual racism.
But, on a more serious note, Thailand could experience a large spike in long term residence via wealthy LTR. A million in assets / buy a $500k property in exchange for a 10 year residence and a work permit for you and all your family is an attractive exit option/2nd residence for rich Chinese. Thailand, when structured well, has a ridiculously attractive taxation system. The mainland exodus will also push Hong Kongers to consider exit plans.
I think SE Asia thinks it wants the Chinese to come, but I am not sure they are really prepared for the long term economic consequences post covid.