Tariffs are a poor remedy for either issue
Regardless of what one thinks about Trump, it is pretty obvious that manufacturing jobs have been leaving the US and going to China. There have been reports of Chinese IP theft from the previous three administrations, so it isn't just a recent Trump thing, or even a D vs R thing.
The question is whether government policy can make any difference. If trade barriers are erected high enough with China, those manufacturing jobs will leave China but they will go to some other low wage country like Vietnam. They aren't coming back to the US, so a trade war in an attempt to bring manufacturing back home is doomed to failure unless you put tariffs on imports from every country with lower wages than the US (and if people think that's a good idea, they need to read their history)
If you want to reduce Chinese IP theft, I'm not sure what the remedy would be, but tariffs aren't a solution. China could still sell products containing stolen US IP within China, as well as to every other country who didn't give in to the inevitable US pressure to erect similar trade barriers. China would probably be successful in getting countries under its sphere of influence to block imports of US products containing that same IP, so would likely hurt those US companies to even try such pressure.
Biting the hand that feeds IT
