Both things can true at the same time. The system ear marks groups like this, arms them, and cultivates these beliefs.
The beauty of this particular scheme is that there's a whole history of doing this with these particular people in the west. A dynamic that has shaped both that culture by magnifying it's features as an ethnoreligion, and the surrounding culture by providing a release valve for internal contradictions without completely implicating the ruling class structure. As such, the reality is blended with "tropes" that can be used as an instrument in whichever way is convenient.
When this geopolitical blunder becomes too much to deny, expect them to tell you to hate Jews.
Any confirmation on the power going out? People on here always dig up shit like that from public websites I didn't know existed.