Do you view any tariff as protectionist, even if China is illegally subsidizing certain industries and stealing intellectual property? Or do you just not buy that China is actually operating against trade agreements they signed?
From an IP basis, I do agree that China is on a land grab to establish its own patent system because of how new it is. It's also unfair to the Utility Model which the US lacks to be attacked by these higher import costs- markets like Shenzen flourish because of it's ability to sell so many things for so cheap. I for one enjoy the ability to buy cheap electronic parts from Aliexpress and Ebay without minding the high lead time because of the low barrier to entry and creative freedom it grants to buy more parts; and see this tariff as being more of a defensive move than a reciprocal agreement.
Entire swathes of high-end US industry are propped up by DoD procurement - a thinly disguised state subsidy. This has a huge trickle-down effect on propping up their upstream suppliers, and, by proxy, unrelated manufacturing segments.