If there is really such things as dharma protectors why world
war 1 and world war 2 the whole world never got a single chance to
see?
Why some monks supposed to have such protectors run and hide in
other countries instead of their own country?
WWI and WWII was results of collective karma.
Dharma protectors are not superman or spiderman or
wonderwomen or inuyasha or whatever, that go around to save and
protect each and everyone walking on earth, as in cartoons or
mangas.
Karma have to be served out one by one. Time taken and magnitude
can be enhanced or reduced nevertheless ,depending on each
indivdual's efforts. In collective karma, all is involved as a
whole but extend of final results is different "case by
case".
Well, if u insist on a "answer" for your monks case'
example, a simple way of seeing it is this: is it
correct that as long as we have bought insurance, we can just
cross the road without looking out for oncoming traffic?; or is it
fine that as long as we have a bodyguard we can walk into a burning
inferno and think that we can come out unscath?. Or if we have
a good government, we can just sit around, eat, sleep and
don't need to build a military defence?
Finally, I think to study and practice the dharma is of uptmost
importance to all Buddhists, regardless there are dharma protectors
or not. BUT I don't mind there are. To argue their non- existence,
pls go to the scentific research insitutions or the relevant
wedsites. 
