Not that I'm anti-China, but their companies would have no qualms selling surveillance tech to your local gov too if they could. I'm sure Palantir, Flock, and other US companies would sell to China too if they could.

This is true, but there is another foreign country that can send people to your door. What's to stop China from eventually buying that type of influence over our govt officials?

China has "overseas police stations". Maybe they won't send goons to your door but they definitely do send goons to Chinese expats: https://en.wikipedia.org/wiki/Chinese_police_overseas_servic...