Price hikes, Ozempic culture, and a stubborn love of beef are colliding at the grill this July 4th. Americans are heading into the Fourth of July weekend with lighter coolers, cheaper eggs, and a nagging sense that they probably shouldn’t be spending $10 a pound on ground beef. They’re going to do it anyway—but maybe buy some new things, too. That tension, between the rational consumer that economists imagine and the one who still wants a burger…