The goal is more varied trading, not just with China, but a consistent trading partner that actually adheres to international agreements is definitely better than when some geriatric toddler can have a temper tantrum and try and wipe out people's lives.
Every single country will try and maximize their benefits of any trade agreement, so not sure why anyone thinks China would be different. They have enough production to flood anyone's market, but nothing wrong with limited free trade (just like what we do with every other country on the planet outside of US and Mexico)