Graffiti is all about freedom of speech, right?

Though I am against stereotypes and cultural biases, I couldn't resist chuckling at this guy's lame sense of humor, as seen written on a concrete pillar under a boardwalk bridge just outside San Juan.
For some context, Dominicans in Puerto Rico are subject to the same stereotypes as the Polish in the USA.

Translation:

Jokes –
1.) Why does a Dominican speak on the phone while on the floor
Because he doesn’t want a dropped call.

2.) Why does a Dominican speak on the phone with a Band-Aid?
Because he doesn’t want the line to get cut off.

3.) Why do Dominicans place a sheet of paper on top of the TV set?
To have “paper” view.

4.) Why do Dominicans use their computers by the window?
To use Windows Vista.

5.) How come vampires don’t suck on people with diabetes?
Because they don’t want to get cavities.