To respect the difference of others is the best way to earn respect from others. Your children are going to be exposed to these issues regardless whether prop 8 is passed or not, and you would need to find the best way to explain things to them no matter what. Simply telling them same sex marriage is wrong is not going to help them living in a society that is built on difference.

I cannot vote. If I can, I would vote no on prop 8 and take the responsibility to educate my children myself.