Satire is clever and amusing, not crude, tasteless and vulgar as these floats are.
And that would be your personal definition of what satire is, or is allowed to be. I probably missed your enraged outcry over the float that showed Bill Clinton grabbing the Statue of Liberty's tits? Some would consider that crude, tasteless and vulgar. So what?
Offended by Mohammed caricatures much? (Some consider those to be "crude, tasteless and vulgar," and will even riot and kill over such - I prefer to err on the side of FREE SPEECH, even if it hurts delicate sensibilities.)