Ah, Don. The explanation is that you are operating from a flawed premise. The founding fathers weren't conservatives. They were a bunch of flaming liberals!

Think about it. They were the revolutionaries of their time (literally!). They plotted, planned, and successfully executed the overthrow of their government! They created a nation based on a bunch of radical new ideas such as freedom, liberty, and inalienable rights. Those guys were hardly conservatives by anyone's standards.

And here's something interesting you might not be aware of. Did you know that the "Pledge of Allegiance" was written by a Socialist? It's true! Check it out.