How is 'multiculturalism' impossible? Try spending a day in any big city. People use words from different languages all the time. They use chopsticks and European table ware at the same meal.

You don't even need to go to a big city. Look at the All American cowboy. Pretty much everything you associate with him comes from Mexico. His lariat comes from 'la riata' and his Stetson was based on a sombrero.