I think "everything is wrestling" in the sense that almost any field has people that are trying to sell you chicken shit and call it chicken salad, and there are cons everywhere. I guess that sort of goes back to Foley's book where he wrote about wrestling being more honest than many other things because at least with wrestling we know it's all a con and we just don't care.
Contrasted against things like, say, doctors that were last in their graduating class in medical school hyping diet pills, politicians who think anyone believes you can "defeat terror", bankers that want to extend your line of credit to help you slip further into debt for their own ends, car companies trying to convince people we need computerized motion sensor activated windshield wipers or your car isn't cool, oil industry lawyer global warming truthers, people that hide bigotry behind religion, tv companies justifying rate hikes to pay executives, etc... maybe wrestling's con isn't so bad after all.
"Everything is wrestling" only in the sense a lot of people are trying to bullshit a lot of other people, and often do so in very over the top ways. We often know those ways are nonsense but can't really do much about it. In that sense I think it's a pretty defensible statement. If that's a short hand term that describes it well for you, sure, why not.