Why are reporters at the DM and other tabloids so keen to stoke that fire? IMO because it's clickbait and they know that Camilla isn't a favourite of the British public.
In every poll that has come out in the past ten years that has gone into the popularity of individual members of the royal family, some conducted by newspapers, others by reputable firms like YouGov, Camilla is at the back of the pack. Time after time the Queen and William, Kate and Harry are pronounced the favourites of the BRF by the public.
Yes, Charles has dragged his popularity up from the abysmal figures of the late 1990's and there has been a similar rise in Camilla's popularity. However, it is nothing to what you would suppose it should be for a hard working and committed heir to the throne and his wife.
For Camilla there will always be the shadow of Diana looking over her shoulder. People will say 'Well, people 30 years and younger don't remember Diana.' That's true, they don't. However, most young Britons also have mothers, fathers, aunts, grandmothers, who do remember and talk about her on occasions, the sort of thing that sticks in people's memories. That baggage of Camilla's interference in her second husband's first marriage will always be there IMO. Charles's spin doctors have tried to re-write history since the couple's marriage, and I believe they've failed.
If I'm wrong, why isn't Camilla up there near the Queen in terms of popularity as you would think her status and charity work since her marriage demands? Why is a committed heir to the throne with a huge portfolio of great work for the country behind him lagging in popularity behind his sons and daughter in law, as he once lagged in popularity behind his first wife?
People can dismiss polls but really in democracies they are the only thing we have to go on to get some idea of what the population of a country think. The result of one poll can be an abberation. One after another, after years of PR from Clarence House? Not a chance!