Reminds me of days of olde... Say anything bad about the King and off flew your head. Now we have annointed the office of the presidency with nearly the same protection. Some of these people would sell our freedoms, one at a time, step by step until we have freedom no more. I view it this way, if you thirst or lust for power, you take what comes with it, no taking freedoms from others. No one forced Bush to grasp for power. Those that seek power over the masses are not worthy of any more protection than you or me.
Is being able to verbally threaten a POTUS with death a "freedom" that's important to you?
I think it's still legal to say you don't like his haircut, or disagree with him politically, by the way. (Don't worry about your head flying off for that.)