They lost their relatives due to a declining living standard in the US. Qanon is a thing not because of Facebook, but because it gave people hope that the horrors and apparent wrongness of the globalism that has wiped out their communities, would be addressed.
Things like Qanon and BLM are a result of that declining living standard. No one would care if the country hadn’t been sold out. It absolutely is the slow death of the middle class and working class has led to all of this civil unrest and jumping at shadows. In a heathy, growing society, you just wouldn’t see things like this.