I think the comment "before it makes an end of America" is a gross exaggeration that is inflammatory in nature and meant to be misleading. You probably meant it to be just a figure of speech, but you ought to be a little more conscious of the enormity of your influence—especially with people already prejudiced versus Mexicans. Also since Mexico is part of the American continent I think you mean an end of the U.S. Remarks like that shouldn’t be made lightly. Too many people will believe them literally and panic.