Tolerance is really only cultural pluralism - something unique to the Western world since the time of Rome. It is a purely Western invention, based upon respect for the individual and the rule of law.
It's obvious that the apes who inhabit our universities think that cultural pluralism is a given, rather than an exception. They are, and remain, historically and culturally ignorant pedants and fools.
And history has throughly disproved this "theory" time and time again. Were this theory true, then no culture would replace another. But as we know "superior" culture regularly replace "inferior" cultures.
Some culture are so superior, Republican and Imperial Rome for example that they tolerated other cultures as long as those cultures tolerated Roman culture. Ditto, modern USA, but no culture can tolerate a subculture that does not tolerate the ruling culture. That is the trouble with Islam, it is intolerant of other cultures. Sooner or later the issue of which culture will rule will be decided. That is the way it has always been and always will be. Islamic culture is NOT a quaint little culture like the Pennsylvania Dutch, is is not as tolerant as say Judaism. Islam teaches it's followers to subjugate or kill disbelievers. Islam is intolerant of all other cultures. Just remember that the nation of Islam was once western and Christan. Few converted to Islam willingly.