Your snark is unnecessary, unjustified, and frankly probably breaking this site rules. The original claim was:
>would expect the consequents of mental illness (most obviously suicide, but also violent crime) to have increased since 1900, around the time that sanitized fairy tales were popularized
i.e. "if fairy tales are the cause of suicide, it should increase consistently since 1900". This is clearly not the case, as proven by your own data. "Things we were doing in 1950-1980 worked and things we did later don't" is a very different discussion and not the one you were having. It seems to me that it is you who misunderstood the argument and are aggressive to your opponent for absolutely no reason.