Get used to it. When their conspiracy theories fall apart under the most cursory examinations, insults and personal attacks are the only cards they have left to play.
Yet oddly all of you Obot anti-birthers are drawn to the Birther threads like flies to dog poop...
Now why do you think that is???
Speaking of tactics, it’s almost Alinsky-like:
5th Rule - “Ridicule is man’s most potent weapon. It is almost impossible to counterattack ridicule.”
13th Rule - “Pick the target, freeze it, personalize it and polarize it.”
Just two examples. Interesting stuff.