Problem is, theists of reasonable intelligence spend a good deal of time honing and rehearsing their replies to these. They might be slightly uneasy with their replies, but if the alternative is letting go of all they hold dear, then they'll hold to their guns. Catching them off guard is a slightly better tactic.
Or, to put it another way: if there were such a sledgehammer lying around, Richard Dawkins (or some other New Atheist) would be using it right now. Dawkins uses all the points you listed, and more; and the majority of people don't budge.
I've often had half-finished LW post ideas and crossed them off for a number of reasons, mostly they were too rough or undeveloped and I didn't feel expert enough. Other people might worry their post would be judged harshly, or feel overwhelmed, or worried about topicality, or they just want some community input before adding it.
So: this is a special sort of open thread. Please post your unfinished ideas and sketches for LW posts here as comments, if you would like constructive critique, assistance and checking from people with more expertise, etc. Just pile them in without worrying too much. Ideas can be as short as a single sentence or as long as a finished post. Both subject and presentation are on topic in replies. Bad ideas should be mined for whatever good can be found in them. Good ideas should be poked with challenges to make them stronger. No being nasty!