Considering that most conservative protest signs are misspelled, have poor grammar, and are written in crayon, this effort isn’t half bad. (And no, I don’t think it is racist. It’s intent is clearly to depict Obama as the Joker)
Of course, being douchetastic wingnuts with no foot close to the border of reality, they added the socialism tag at the end which renders whole poster nonsensical since the Joker is an Anarchist which is on the completely opposite side of the political spectrum.
Or did I miss the plot in the comics when Joker decides to terrorize the city until Gotham agrees to take over ownership of Axis chemicals at which point Batman runs for Governor of Alaska and quits half way through his term to prove how good he is at being a point guard in basketball?