Really? So the slippery slope isn't real? The police is already being trained to treat protesters are terrorists, which is also what's happening in Turkey right now . When are you going to protest about it? After the revolution and others suffer and die to preserve your freedoms?
Wake up and smell the coffee. The slippery slope is real, and there are clear patterns here that you'd be wrong to ignore.
And the fact is that there the arc of freedom in this country has been bending towards more freedom. You are more free today, more insulated from arbitrary government action, than you were in say 1970 (Kent State shootings), 1950 (McCarthyism), 1942 (Japanese internment), 1862 (civil war), or 1800 (post-revolution paranoia).
It might be a slippery slope, but it's a slipper slope on a hill we're slowly climbing up.