Should England leave the UK? No. But the people should take up their individual power over government, both in England, and the States.
Think about this. You go to the store and buy something. You pay for it with you property, your money (it's your property because it represents your time or labor). You get an itemized receipt for what you purchased. When does government ever give you an itemized receipt for the things your tax money bought?
Oh sure. They say your money goes for roads and schools and military armament and all kinds of other things. But how can you know that they are giving you a reasonable amount of whatever, if you don't get a receipt? Or how do you know that they are giving you only things that you would like them to be giving you?
Pick up your power. Let the governments remain. But rule them by withholding all tax money until they show you
exactly what you are buying with it.