Ultimately China and US (and anyone else in the world for that matter) are doing the same thing - helping their domestic industry compete domestically and internationally, because they want prosperity for their country. They do it via different means - China via massive subsidies and US via bans and tariffs, but the end is the same.

If someone tries to tell you that these are somehow morally different, and one of them is the good guy and the other is the bad guy, they are pushing propaganda, knowingly or unknowingly.