I was looking at their Wikipedia page and I noticed they supported internment in Northern Ireland during the early phase of the Troubles - that's hardly challenging the establishment.
[Internment was probably one of the daftest ideas implemented by a UK government for a long long time.]
Edit: Note, I am a regular Guardian and Observer buyer - occasionally get the Times for a bit of balance (though still in mild shock over contents of the Telegraph my wife bought at the weekend as everything else was sold out!)
https://en.wikipedia.org/wiki/The_Guardian#Northern_Ireland_...
[Internment was probably one of the daftest ideas implemented by a UK government for a long long time.]
Edit: Note, I am a regular Guardian and Observer buyer - occasionally get the Times for a bit of balance (though still in mild shock over contents of the Telegraph my wife bought at the weekend as everything else was sold out!)