>>bedhea+26
No. It can be rational in the context of anti-colonialism and sovereignist ideology and historical revanchism, as well as many other not at all irrational ideologies. It might or might not be effective, depending on the specific political goals in question. It is not, in general, about religion per se, except in so much as religion is part of group identity (in a similar vein as say, nationalism).
But that is not the point. Targeting civilians for political purposes is not an act of insanity, but it is an unacceptable means, no matter the ends.
(Not saying that the ends are good in this case, nor the opposite. It just really doesn't matter.)