@vera99 The problem with quoting Comment is Free from the Guardian is...well, exactly that! These are features written by writers with an axe to grind, who find a space for their opinions. They are not always impartial, because, hey, that doesn't sell papers. The writer will select various quotes and stats to suit their point of view.
If I recall correctly, no one who writes for the Comment is Free gets paid for it as it's a 'free' soap box' for anyone with an axe to grind.
For every bit of 'science' in that feature there will be a counter-argument.
It's not a very good way to prove your point by linking to one article by a freelance writer, in a left of centre paper, and expecting it to be The Truth.
There is more than one side to this.