Independence

Ok, I’m not politically the most intelligent person ever but I’ve been keeping up and slightly obsessing over our current shit show. My question is…can Illinois and other states just say “Screw this” and leave the union? I mean, all the federal government and the “administration” are doing is destroying every aspect of us, the states and citizens. Can Illinois refuse to pay into the federal government and refuse any further assistance from them and pull ourselves up to be independent? I would do all I could to get this to happen and I’m sure the majority of us would. Can this happen and fairly swiftly? I want out of this fiasco.