Operation Enduring Freedom, the Iraq War, the Patriot act, etc, were all based on the premise of defending our freedom, when the reality is Iraq nor Al-Qaeda posed any existential threat to it.
The reason freedoms are often infringed upon in times of crisis are because it is often pragmatic to do so. Also, most of these protestors have little to any idea how the US government works, let alone how its founding father's intended it to. Many would probably be upset at what they read.
No, they are not. Maybe someone said that, but it is quite obvious you don't go to fight in Afghanistan to protect your free speech or the right to bear arms, is it?
That someone is the entire US military. Operation Enduring Freedom.
As for the patriot act, from justice department:
> the Patriot Act has played a key part - and often the leading role - in a number of successful operations to protect innocent Americans from the deadly plans of terrorists dedicated to destroying America and our way of life.
The reason freedoms are often infringed upon in times of crisis are because it is often pragmatic to do so. Also, most of these protestors have little to any idea how the US government works, let alone how its founding father's intended it to. Many would probably be upset at what they read.