Part of the criticism is definitely fair but nothing will come out of this. No other parties will support the anti-monarchy agenda that it obviously is and tbh it’s quite unfair that only Joachim and his family are scapegoats when the injustice of monarchy is up for debate.
Marge prepared this shitfest when she made sure Joachim was given a public fee and later Alexandra too. Yet she is above criticism

Just as Fred gets away with doing nothing and Joachim, thus not being able to work very much, gets shit on whether he works as a prince or if he tries to move beyond it and gets an actual job.
It will be interesting if Isabella, Vincent and Josephine will be equally criticised when they are adults..
Probably, and this is why I don't envy the spares, even though it is probably easier to be a spare than the heir (you get the privilege and all the benefits of it when it comes to things like educational opportunities and never having to be poor but don't have to sit on the thone).
They spares are treated well as kids, because kids didn't choose to be here and they need to be provided for because they are too young to make their own way and it is a douche move to shit on kids so no one in the media will go there. They still get treated OK as young adults, because you gotta keep the spare liked in case a tragedy befalls the heir and the spare is needed to take the throne. But once the heir has gotten married has produced an heir......the spare is dumped and tossed out to dry because they are no longer needed. Some royal families do a good job of preparing the spares to make their own way (like Bea and Claus), but many of them don't and the spare gets blindsided when they go from "glam young royal" in (give or take) their early-mid twenties to "leech" by the time they are in their md thirties (again, give or take).
And the spares are damned if they do, damned if they don't. If they take the Madde of Sweden or Harry Sussex path and peace out, they "want the title but none of the duty", but if they try to be relevant royals like Carl Philip/Hoefia or the Yorkies, they "want to live off the tax payer because they don't want to get a real job".