Sometimes it's not good to dismiss "unpopular" ideas, but it usually is a good idea to (provisionally) dismiss dumbass ideas which don't appear to make sense and for which there isn't any damn evidence.
The date of bin Laden's death (if indeed he is dead, if indeed he ever existed) is a fact-of-the-matter thing; it's either one way or it's another way, and there shouldn't be much room for reasonable people to disagree at all. Reasonable people may be uncertain on such matters, but they should all share similar degrees of uncertainty.
Dismiss because everybody says so without giving any thought = Bad. Dismiss after thinking about it and looking into it = Good.
Ironically, I should dismiss your response because you’re repeatedly beating the same dead horse. ;)
So whom, exactly, are you accusing of dismissing it without giving it any thought?
If you gave equal time to every theory, no matter how basicly logically flawed, you would end up spending all your time just watching poorly edited videos on youtube. Dismissing something as a conspiracy theory isn't closeminded, it's a basic defensive mechanism.
Curious to know about your username "burgerbrain"? ;)