They attack up, not down. IMO, their attacks on Charles, Camilla, William and Catherine are stupid and short-sighted in the extreme, but if their aim is to bring down the monarchy, they've got to attack them. But they never attacked the Queen and PP (too beloved and too old at the time, so would make them look bad), they've never attacked Anne, Zara & Mike, Peter Phillips (who has been involved in all kinds of commercial ventures), or any of the York clan. However, all of them are below the Sussexes in the pecking order. They never attacked Edward and Sophie until they became D&D of E.