Perhaps it's worth remembering Martin Parr was elected a full member of Magnum by his peers, existing full members of Magnum.
Threads like this have actually made me realise Parr's work while diametrically the opposite of the way I see, think, and work is important, brilliant and more important;y a very valid way of looking at how others behave.
It's worth looking at some of John Goto's work, an artist who uses photography as his medium I saw his superb exhibition Ukadia in 2003 at the Djanogly Art Gallery, Nottingham, I'd seen his powerful Terezin exhibition a few years earlier.
There's different ways of looking at the world and life, it's important to have an open mind, and go see work you might not like (if not too far out of your way). It's worth reading some of John Berger's books like - Ways of Seeing.
Ian