Rachack, in a recent post, made the following statement:
At a certain point, an intellectually honest person arrives at the conclusion that no matter how many inconsistencies he sees in yiddishkeit or our community, it is, (as Winston Churchill said about democracy) 'the worst system except for any other'.
This statement is often made regarding the United States (in that, it may not be perfect, but it's the best system designed so far). However, there is a big difference between accepting Yiddishkeit because it's the "worst system than any other" and accepting a secular governmental system for the same reason.
A few years ago, I was discussing religion (in general) with a co-worker of mine. He posed the following question:
If it was found that the central event of a religion's founding or theology was found to have been false, does that invalidate the religion? His main concern was regarding the Crucifixion and Resurection of Jesus, but the same question could equally be applied to Mattan Torah. Hypothetically speaking, if Mattan Torah did not occur, does that invalidate Judaism as a religion?
Of course, it's hard to argue against not killing, not stealing and loving your neighbor regardless of whether or not certain historical events actually occured. But does keeping Shabbos or kashrus make sense if Mattan Torah is found to have never happened?
On the other hand, a governmental system isn't like that. If we find out that the American Revolution never happened; that George Washington and Thomas Jefferson were just myths, etc., it still wouldn't be any reason to overturn the current system of government we have. In other words, our government (or the British one, to harken back to Churchill's quote) stands independent of the historical events that created them. You could pull those historical underpinnings away, and the edifice still stands.
That's not true, however, with regard to a religion. Judaism is predicated upon two major events - Creation and the Exodus/Mattan Torah. One could (theoretically) strip away the Patriarchs, the Flood, David, Samuel, Mordechai, the Prophets, etc. and the edifice of Judaism would still stand. But once you strip away Creation or the Exodus/Mattan Torah, it all crumbles. There really isn't a point to avoiding Shaatnez if God didn't command it at Sinai. Why fast on Yom Kippur if God didn't command it? As such, one cannot accept Judaism simply because it's the best system available. That may be fine for some secular governmental system; but the Torah needs more.