As many posters have pointed out, Harry and Meghan couldn't even get the time of the event (on Archie's skin colour) right. And both of them couldn't even name the individual, instead decided to make blanket statements on how the royal family is systematically racist. Both of them also did not give context to the racism incident and Meghan herself said "potentially" rather than being definite.
Nana Akua was on Good Morning Britain, who has mix race children. She was very adamant on finding the context of the conversation, whilst also calling out actual racism. She also said that when she was expecting her first child, there were comments on her child's look. Not all of them are racism, some of them are ignorance and lack of understanding.
Meghan herself has lied before on the involvement of Finding Freedom. She first said that she has not involved with Omid Scobie and Caroline Durand, but then later admits that she did pass information to the authors via a third party.
I am an ethnic minority in Australia and I also dislike how "racism" has be thrown liberally, especially over little things and have been used shut down discussion. Yes, real racism in any shape of form should be called out. The Jussie Smollett incident really angered me, because it undermines actual racism.