How many Mexicans does it take to change a light bulb? I don't know as I don't allow Mexicans inside my house.
I don't find it funny honestly.  Do you believe your comment above is funny and entertaining?
I believe it's true and the real joke is on the people who are offended. They are just idiots who cannot see the truth.
It's wrong that you discriminate mexican people. All mexicans are not dumb or uneducated.