What it is, is a basic feedback loop. An echo chamber.

Which goes much deeper into human psychology than just a particular cultural brand, with the trials and tribulations of a Bronze Age tribe as its village totem.

Given similar levels of delusional hysteria are occurring across the West, ie, the US and Europe, it is that deeper dynamic that needs exploring.

Eventually, probably sooner rather than later, this whole bubble, ponzi scheme, rabbit hole, religion, ideology, cult, culture, whatever, is going to go splat and then people with wonder WTF happened.

The whys and wherefores;

https://medium.com/counterarts/why-the-feedback-loops-need-circuit-breakers-531d1ab0fe0f