I wasn't brushing the topic off, I was merely stating that I'm afraid the believability of an allegation or testimony, in the absence of hard evidence will very often depend on the context in which it was made.
Nobody is going to be so classless as to ask Meghan or Harry to prove her state of mind, and FWIW, I have no opinion either way on how true it may or may not be.
Nonetheless, if your personal situation is one where you're in a time of your life when you're working very hard to raise your profile at all costs, and portray yourself as the victim in a family dispute, and you have a track record of either misremembering, exaggerating, or saying things which turn out to have no basis in truth - then I don't think we can be too surprised that some people don't believe her.
That is, I'm afraid, part of the rich tapestry of life.
The best thing that Meghan and Harry can do is to simply crack on with changing the world however they see fit and get on with life. And preferably to not moan about daddy not subsidising them. If they want to leave and be normal people and not talk about the royal family again, I am sure people would respect that very much.