A Mexican an Arab and an American are in bar. The Mexican drinks down his beer, tosses his glass in the air pulls out his pistol and shoots it out of the air and says "Glasses are so cheap in Mexico we don't have to drink from the same one twice"
The Arab clearly impressed by this drinks down his beer quickly, tosses his glass in the air pulls out his AK-47 blows it to pieces and says "Where I come from we have so much sand to make glasses we don't have to drink from the same one twice either"
The American, cool as a cucumber, chugs down his beer, tosses his glass in the air pulls out his .45 and shoots the Mexican and the Arab, catches the glass and asks for a refill and says, "In America, we have so many illegal aliens we don't have to drink with the same ones twice."
Build that wall?