JaneJudge
I can't remember Trisha being exploitative or Vannessa Feltz tbh. Jeremy Kyle seemed to want to be an English Jerry Springer?
I found an old article
www.thesun.co.uk/tvandshowbiz/9076315/jeremy-kyle-lost-plot-trisha-goddard/
That article is basically Trisha trying to distance herself from the whole debacle, though.
I think that any show that relies on disadvantaged people being televised in return for a DNA test or the chance of therapy is exploitative. I can't remember if Trisha offered DNA tests (I rarely watched either, but have seen both programmes), but encouraging people to talk about affairs, or drug addiction, or family problems and then go back to their home towns where they will be left to deal with gossip and ridicule is irresponsible.
The children of the 'guests' would suffer too, by always being known as 'the one whose mum is an alcoholic who had an affair with the drug-addicted neighbour', or whatever. To the show makers the guests may be interchangeable, but the consequences for them as individuals may well be lifelong.
I don't think any such shows are aired now, which is for the best (maybe the nearest is the 'hilarious' early auditions in talent shows), but they used to be commonplace, and tied to the toxic 'poke fun at so-called 'chavs' ' culture that went with them.