The was a statement a friend told me a long time ago in regards to a relationship.
While I agree that is does appear facist, are there not practices that you yourself hold such distain for that you would not associate yourself with those who do them?
This was mainly the thrust of the statement, for as you say that a world without tolerance would leave few alive, so too would a world with total tolerance (think if everyone just tolerated a mad man's behavior, or a rapist , or a serial killer, etc.)
Instead of being totaly one way or the other, one needs to use their own personal disgression to determine which practices to tolerate and which not to. And simple put, if you can not tolerate a certain behavior then it is also your responcibility to remedy the situation. This is not to say you attack the other person whose behavior you cannoot tolerate, instead you find a way to deal with the behavior whether through avoidance, debate, or constructive intervention.
Perhaps though I should reword the statement to better reflect that instead of having people draw the conclusion that you have. Any suggestions?