The US is too big to ever be free again. Allowing the freedoms that the founding fathers wanted would jeopardize it's place as the controlling superpower. The people could fight, they would be crushed. By force and by propaganda. China already does it and they are growing by leaps and bounds.
It's sad but it's true, the bill of rights is a hindrance to big business, especially international big business.
Much like Rome started by dumping it's kings and creating a republic, so too is the Pax Americana, and it is coming to the down slope. Everything will slowly change, as things did under Ceasar and Augustus to the point where the original ideals are but figureheads and then it will collapse on itself.
The best you can do is promote freedom, speak your mind and try to keep them from taking your rights away. Live life as you feel you should with the freedoms you feel you should have. Deal with the consequences as they come.