“The reason I’m in America, along with so many critical people who built SpaceX, Tesla, and hundreds of other companies that made America strong, is because of H-1B,” Musk wrote. Then, with all the subtlety of a flamethrower (one he probably designed himself), “Take a big step back and F*** YOURSELF in the face. I will go to war on this issue the likes of which you cannot possibly comprehend.” Of course, fans will notice it's a key line from Tropic Thunder (see post above).