Recently, HSLDA has been claiming that 80% of homeschoolers are evangelical Christians, as they do in this article in Insight Magazine. What a load of bunk. Ian Slatter of HSLDA says,
"It's difficult to get exact numbers, but about 80 percent are evangelical Christians and 20 percent are nonreligious."
So, Ian, say we accept for the moment that 20% of homeschoolers are non-religious. What about all the NON-evangelical Christians, and the Muslims, Buddhists, Baha'is, Jews, Unitarians, Pagans, Hindus, etc. that homeschool. You seem to have forgotten about them when you fabricated your statistics.