I think one needs to be very careful about this business of "cutting through the bullshit" or whatever. It's easy to turn it into a self-righteous way of talking about whatever you disagree with. You're not just disagreeing, you're scoring a victory for the truth in a world full of crap, etc., etc. Also, it does nothing to analyze why certain social fictions are propagated and continue to function even if no one believes in them. You can just content yourself with thinking everyone is full of shit and stop thinking there.