If US Companies were afforded the same property rights and protections in China as a Chinese Company presently enjoys in the United States - there wouldn't be an issue IMO. Any Chinese Company doing business in America is afforded the same legal protections and redress in US Courts as an American Company.
And by the way, the EU has filed a monster case against China in the WTO regarding Intellectual Property theft and forced technology transfer for EU Companies doing business in China (amended and expanded in December, 2018). Unfortunately, China has a very mixed track record with respect to honoring and enforcing by law WTO rulings and regulations. The US filed an almost identical complaint earlier than the EU - but of course the US has no faith that China will legally enforce a WTO ruling on IP.
If China imported $200B worth of US goods to partially offset the ~$470B trade surplus they have enjoyed for many years - there wouldn't be a problem.
That's what you get when you do business with laws and regulations that are not up to your standards and is not willing to respect and comply with your laws. Then you have a choice. US should've walked away.