I don't know that almost everything is a crime in America now, as this article alleges. But it's fair to say that if you had told Americans fifty years ago that this is what their children and grandchildren would end up getting arrested for, they would probably have laughed, and pointed out that this is the land of the free, and accused you of being a damn fool or a Chicken Little.
Most people don't give much credence to the admittedly much-abused slippery-slope argument. They think you're just seeing ghosts and engaging in tinfoil-hat radical thought when you say that, for instance, the blind enforcement of overreaching commerce laws is going to lead to the patently preposterous, like officials shutting down kids' lemonade stands.
Thomas Paine got it right: "Those who expect to reap the blessings of freedom must undergo the fatigue of supporting it."