Well, if it is a truly secular state, then most people would be atheist, or at least agnostic - let us suppose that. And one will inevitably see the rise of the persecution of religious folk. Sad, but true. So there are laws to accommodate everyone.
Complete neutrality would be some sort of anarchist-libertarian state, one that does not exist, nor will (at least successfully). Where there is no or little power, new power will arise to fill the void. That is why no libertarian government is feasible, not anymore than a true communist state - and even communism seems more probable to me, or at least its early stages (the one where Marx says a 'temporary' authoritarian gov't should exist).
Bookmarks