Yes you have those liberties to a point, just like everything. Your right to speech and bear arms are somewhat limited though. Again, you can't scream fire in a crowded movie theater without consequneces, nor can you go out and buy a M249 belt fed light machine gun without a special permit. Tell me why we shouldn't have a Department of Homeland Security? No war on terror, sure we can let Al-Qaeda and everyone else do as they please without consequences too. Guess we could go back to Isolationism, but that'll bite us in the ass.
I'll say the people's voice is strong, but at the same time, this is why you elect representatives. You vote on certain things, not everything. Welcome to democracy. There are many things I'd love to change, hell maybe we need another Revolution, but this is what we got, so love it or leave it. If you feel so strongly, then run for office, get into politics.