I love the poster... but...
Using the incorrect “your” on the poster detracts from the message. The poster maker should have used “you’re,” as in “you are.”
A common mistake, but when you’re targeting idiots, it’s best to correct the spelling errors before publication. Yes, I’ve made mistakes, too. We all do. However, this one just jumps off the screen.
Oh, good gravy. What is it with the grammar police here? What is the matter? Did you not do as well on your Chemistry or Physics classes, and feel you have to compensate?
I am going to have to cite you for a dangling participle.
It isn't my poster, and if you really feel that strongly about it, I suggest you write your (proper use of your there) Congressman....or Congresswoman.