Aren't they a bit like the Kardashians, out there hawking their goods for money, more fame, recognition, whatever it is they seem to be looking for.
It's just a different iteration of the likes of the Kardashians or a Housewives franchise. Look on any forum discussion around the Kardashians or a Housewives episode and you will read similar kind of commentary as you do about Meghan and Harry. They all have massive publicity machines behind them feeding the media.
Harry and Meghan bring it all to the table, but with a unique Royal flavour, family feuds, influencing to make a stash of cash, gushy gushy friendships, cosmetic surgery, designer clothes, little kids included in the bandwagon, none of them with any real job but plenty of money, aspirational lifestyle with private jets, mega mansions, an army of staff, and in the case of Harry and Meghan, the icing on the cake being Royal titles from the most prestigious Monarchy on the planet.
Its a great spectacle for the viewer, its there to be discussed, ridiculed, fawned over, discuss what will happen next, what already happened, what did Kim (Meghan) do to her face, why is she being so rude to her husband, why is he such a wet blanket etc etc.
Its a reality soap show and Harry and Meghan seem to be very happy to oblige with content.