It's a good question. It's certainly time for some change based on the mess we are in.
In my opinion realigning ourselves with our allies should help us have some collective power to balance against the power of China and their new regional free trade partners. Also not trying to make everything so adversarial (with everyone) would help. When all the world leaders except psycho dictators hate our president, it makes any kind of agreement harder to reach. So lets bring our friends back in and lets return to diplomacy and sound policy based on some consensus of trusted economists.
The fact that the tariffs hurt China isn't necessarily a victory when they hurt us too. The tit for tat escalation in this trade war appears not to have benefitted anyone. If we launched missiles at China that would probably hurt them too but I don't see that helping anyone or anything. I'd prefer a non-weaponized approach.
Presidents before Trump tried those methods. China ignored them and went about stealing intellectual property and adding tariffs to American goods sold there. They haven't budged much since we put tariffs on. Why would you expect any cooperation if we dropped them?
Xi assured Obama the islands in the South China Sea would remain for civilian use only. A promise immediately broken by China. Their claim to them even as civilian property was rejected by the International Court and ignored by China. Working with our partners didn't work before. They could care less about America's IP and tariffs on our goods sold there. They have their own problems with China. Trump understood that. That's why he went it alone with China, Iran, Paris, North Korea, etc. He understood that our friends are summertime warriors. If we didn't do it for ourselves, no one else would make much of a difference. However, his applying heavy navy forces in the Sea there helped pull many of our friends back. After Obama abandoned them by pulling pour the navy, they started to drift to china. Trump strengthening our military presence there bucked them up again and we're closer to Japan, Taiwan and our other friends more today than in years. If Biden weakens American resolve, these countries will drift away from us again towards China. So far, he has already sent a carrier tasks force through the Sea which shows me that he intends to keep up Trump's policy even if he calls it something else for domestic political reasons.
If Biden goes back to how previous presidents did it, he's going to get burned as well. Sending the carrier tells me he learned about Chinese deceitfulness and untrustworthiness from his experience for 8 years working with Obama. As VP, he was assigned to be the lead guy with Xi. The North Koreans are probably more reliable than China. And that's saying something.