Programmes like QT and its radio equivalent (precursor?) Any Questions. are interesting because they show what the woman and man 'on the street' are thinking about the issues of the day.
The panel was always made up of 'experts', or at least people with a knowledge of the subjects under discussion, but lately that has been watered down, and we have been subjected to 'celebrities' giving their uninformed points of view.
Fine, up to a point - the majority of people in the audience are uninformed, and it is their opinion that we are listening to (and the lines between opinion, fact and educated guess have become very blurred over the past decade or so); but in this case we had an expert in the audience talking to an actor with no expertise in the subject beyond lived experience.
Arguably, his lived experience is somewhat rarified, and puts him outside of the 'norm', but that is the nature of QT. I think the combination of the idea that all opinions are of equal value and merit (tell that to a patient in a surgery ward) and the morphing of QT from news to entertainment has made this sort of thing inevitable.
Personally, I think that LF is an entitled pillock, and that he has done his reputation no favours, but that's just my opinion, which is worth no more nor less than anyone else's on the matter.