Thanks for your detailed and interesting comment @arrozymangophoto. I will look out for some of those Spanish bands. I definitely think there is still good anti-establishment music around - it just doesn't get played on the radio so much these days, so it's good to hear these names.
I think the problem is that it became trade and currently despite the harsh criticism that may have a group the establishment knows how to numb the masses if they come to reveal against the power.
I TOTALLY agree with this!