There is either a connection between islam and terrorism, or there is not. If there is, then islam needs to be either changed to a profound degree and at a fundamental level, or excised. If, on the other hand, it is claimed that such a linkage between islam and terrorism does not exist, evidence needs to be produced to refute the anecdotal evidence we are all aware of.
Excision of islam could, arguably, include removal of sites regarded as integral to islam.
Therefore, I contend that the sentiment expressed in "nuke mecca" may not be entirely misguided.
I'm with you. Heck, we don't even have to do it while people are there. We can tell them, very politely, that they need to please vacate the area for a few minutes, as we have some nuking to do. If they refuse to get out of the way... well... they WERE warned, weren't they?
No, I'm not kidding. I hate this religion.