Do you have direct experience with Chinese nationals and Chinese culture that would lead you to know this, or are you perhaps projecting your own feelings about Western imperialism onto them?

It's not impossible, but it does seem a bit unlikely that most Chinese people are holding a grudge about the Opium Wars, or that you would know what most Chinese think. Perhaps you meant to say you believe most Chinese shouldn't forgive or forget about the Opium Wars?

Direct experience, but it's not hard to find public supporting evidence, either.

https://www.economist.com/christmas-specials/2017/12/19/the-...