It's not really about Meghan, love, but the public especially you guys (who are uber invested in royal celebrities).
Historically, the public turns and fawns based on tragedy. Princess Di wasn't even that popular before her death, and then the tide of sentiment turned overnight. (I do realise I'm on the royal boards so you were already fawning but nonetheless! Also, you'd all soon change your tune about Meghan if she got very ill.)
Meghan and Harry have objectively been in a mudslinging competition (even if they're the only participants with Kate & Harry) for years. Even on this board, people sniped at their announcement while you might see I gave it/them the benefit of the doubt!
Meghan can never win against a tragic victim who actually has cancer, even though I doubt if you actually had cancer (like Kate) you would have such a juvenile perspective. Anyway, absolutely the only way Meghan is going to win this competition of her own making is to be even more tragic and ill.
Given how far M&H have stooped, it would be interesting to see if they'd go that far. I literally said "it would be a one-upping nightmare" if they would, not that I think she def would. (Fwiw I don't believe H&K behaved as above-board privately as you probably believed either by the way, being human.)