Uh, its called "community" and "networking", which is how it is in the real world. I work for a multinational financial firm and its not surprising that a disproportionate percentage of folks that I work with went to private (especially Catholic) high schools.
Of course, you can value "diversity" and want your kid to be the same as the unwashed masses, but that's your perogative.
From my understanding, the GR public schools have a healthy budget. So throwing money at it is not the solution.
I wonder if they compared the Christian schools in GR data vs. the GR public schools. My money is on there being a big difference!
I went to a Christian school in Kalamazoo. Struggled to get B's and C's, but when I went to University I had a MUCH easier time than my friends who were getting A's at Public schools!