Gavra, Yekke clarified that he was just speaking about situations he’s personally seen. In his experience, Kollel families have better exposure to Torah values. Not everything has to be part of a larger, blanket statement.
To the thread in general: Don’t criticize others until you’re on their level. Everyone in this forum has SOME threshold when it comes to who is in the school with your kids (i.e. if you send your kids to Orthodox school, you have a reasonable expectation that there won’t be militantly Atheist secular Jews with them). Some people have a different threshold on this matter than others. That was Yekke2’s point, and he’s spot on.
Now, I’m only referring to thresholds when it comes to religiosity. If it were a matter of rich, Upper-West-Side parents turning their noses up at kids who were more religious because of their economic status it would be different. And it would get a lot less ink.