I can tell you one thing, The Quran or Hadith has nothing to do with it. Miss-explanation of it (knowing and unknowing) is a big part.
A lot of it comes from illiteracy. Illiterate people are easy to manipulate. Of course the question comes who manipulates them and why. And trying to explain that is so complex, I can't even start on it (as much of it as I know).
It also comes from dissatisfaction. Dissatisfaction of have-not about haves. Dissatisfaction about decades long injustices, and many other things.
And then, getting trolled for various reasons by various entities (the recent example).
In short, its a problem. But a problem that does not have any easy answer but the solutions are relatively easy. Education and from education the huge knowledge of "don't feed the trolls".
সন্মানজনক পরাজয়ের চিন্তাটাই অসন্মানজনক