That kind of logical flaw, abundant among "normal people" is impossible to battle. I'm gonna have to basically get rude, and I really don't want that...
This is one of the reasons that I question the "normality" in the first place. "Normal" people are usually much more illogical than aspies, even when the logic is astonlingly simple. It's incredibly hard for them to get simple but unpleasant facts into their heads.
Normal is not the same as logic, only the consequence of majority.
I know, I know. The "normal" majority is a bunch of people who have magical thinking although it is 2012. They lie to themselves and others every day, even about banal things. They think that wishful thinking will change anything. The deny very simple facts, if the facts don't fit in with their opinions of how it "should" be. Yet they havde the stomach to define us as "abnormal", but, after all, they are shameless liers 
It is just the way the brain is wired. I have to remind myself that
our brains are wired
wrong, with the result being a more factual relation to the world. You must remember that all these delusions and bullshitty mentalities are - somehow - vital for pack-maintanance, they are purely social. It probably has to do with the ability to "instantly" fit in. If your pack suddenly decides to believe in Raelianism, then you must too - or you will be expelled, and starve - therefore you must posess the ability to simply un-know everything you once knew, and replace this with new knowledge.
I often tell people - the fact that europeans are often agnostic or atheistic doesn't have much to do with intelligence or rationality, but simply consensus. It just happens to be our culture, recently, to not believe in "God", but this is prone to change, depending on circumstances.
The biological/psychological need for beliefs and deities are often connected with the need for a divine protector - so as long as we're safe and sound, we won't need deities. If life became much harder, and survival became more of a real issue, I wouldn't be surprised if all us modern, rational, etc, europeans would suddenly become religious fanatics again :I
As you can see for yourself - despite being non-religious - people still have that "religious mindset", where they can look right at a fact, and un-see it, they can be told an obvious truth, and un-know it, depending on their own personal interest
