Huawei & co are probably going to have a field day when they finally take this to international bodies.
The sheer levels of protectionism and likely xenophobia are quite staggering. It all seems to boil down to the old "3rd world slave labor is just fine for building western branded things, but the second they get ideas above their station and start trying to net some of the real money, well then we'll fuck them."
And we do it in almost every field from refined materials (we'll buy your ore but you best not send it to us in a machined for as we've got tarrifs on those) same with coffee (send us your beans, but make your own coffee and we've got tarrifs on those.) The difference here is that China has money to take the US to court (a lot like the Japanese and South Koreans did during the previous bout of "dirty yellow basterds stealing our technology markets", however fortunately for those two they were more or less American vassal states, so as much as being dirty yellow upstarts it was hard to tar them with the old security risk brush.