Well bottom line is I don't mess with any of it as it's all a turn off for me, Christianity, Judaism, Islam or as I affectionately call them the Big 3. No one wants to have a critical or counter analysis of what they believe or think. But Ok, whatever.
You can offer whatever you wish, but as with any subject there has to be integrity on the matter. You (in general) can't just make stuff because you don't like "The Big 3" nor can you attribute things to them if/when its shown that situations exist beyond that attribution (ie Islam introduces slavery in an area where slavery predates Islam in an area).
A theological discussion and an historical/cultural discussion are two different (yet intersecting) things.