The fact is that the majority of children from intermarried families don't identify as Jews. One of the most troubling aspects is that 90% of children who have one Jewish grandparent will end up losing their Jewish identity forever.
The Reform Movement is shrinking rapidly because it's been too tolerant of interfaith marriages. This is why it's a huge problem within the Jewish community right now.
You and Laurel should be commended for raising your children Jewish but unfortunately your families are an anamoly. If most intermarriage families were like yours this wouldn't be an issue. Most of these families end up severing their ties with the Jewish community and that is the sad reality.