This is good!
I totally agree w/ you! Also, EXCELLENT question! If I may, very humbly add, it's not just freedom in America, and how would one defined it, it's freedom period! B/c, quite frankly, if you're not in Christ, you're bound anyway, though you may not know it.
I said that to say this, if you're searching for "freedom" in this wonderful country God has blessed us to live in, you will be searching, researching, and constantly adjusting to the constant changes of what freedom is in America.
However, "Whom the Son sets free is free indeed..." Regardless of where you are or what country you live in.
Other than this, as far as freedom in America, the only place may indeed be found in your head....