Yes, the "vague idea anyone can attach meaning to" is often an intentional aspect of these movements to gather larger support. Its also easy to subsequently exp

Yes, the "vague idea anyone can attach meaning to" is often an intentional aspect of these movements to gather larger support. Its also easy to subsequently exploit and I think the venerable CIA handbook from the ~60s goes into detail on that. Of course having a narrow focus doesn't really stop exploitation from a motivated counterparty with sufficient resources, especially when you need broad source support (e.g. large political reform issues).