In this case it’s not that they felt mistreated. rather it’s because they felt the concert to be extremely immoral and an example of the immorality of the Western culture. I have read Muslims saying that they hate Western culture and must stump it out because they fear it will infect and destroy their families. They haven’t a single valid thought, except their hatred of the rottenness of too much of our culture. Their culture, if they should look at it honestly, is full of wicked immorality, but they don’t see that.
What they did is evil beyond comprehension, but the motive wasn’t ill treatment. In this case, not all, or even many, it was a combination of just plain jihad and making a statement against what they perceive of as the immoral culture of the west. And, of course, the immoral leftist pansies isn’t going to come out with a statement concerning turning away from our vast immorality, as they rather say that it was ill treatment.
Communists also think that the West is immoral.
And it isn’t sexual liberty that they find immoral, it is personal wealth and liberty of thought, religion, and deed.
The Marxist minions are in league with the Devil to tear down the West. Chaos, subversion, and cultural revolution (breed the locals out and bring in more to do same).