I'm not sure. Maybe he wouldn't have had to be sold as an indentured servant, get beaten, be deprived of an education, and sleep on a mattress soiled with piss. Or maybe he would have died of starvation, who knows? Or maybe he would have moved with his parents to Australia, where the article mentions they went. It's definitely worth thinking about.
Please don't conflate my opinion and that of the author. I can't answer what the author's point was.
> What does the author suggest Jackie Chan do instead of rising above his past? Obsess about it and wallow in despair, hopelessness, and depression?
Again, I can't answer for the author, but I can think of a few things Chan could do: help prevent a similar hard childhood for current kids. Speak out. Join an advocacy group. Maybe raise awareness of how dire the situation for many families was in colonial Hong Kong. Not saying all of these would be helpful (and maybe he already does some of this), but arguing there's only despair and hopelessness seems disingenuous to me.