I agree with your longterm opinion on survival of Shiites in Yemen, except, do you have any information on the differential birthrate of Sunni and Shia population in Yemen. I know there are serious discrepancies of Israeli birthrates—Reform vs. Conservative/Orthodox, Jews vs. Arabs, European origin vs. north African/ME. Meanwhile to get back to the fighting, here is an excellent link on current impact of this little war.
http://peak-oil.org/news/
The population of Yemen is 99% muzzie, nearly 65% Sunni, nearly 35% Shiite — although that last figure has been getting a slight boost from all the Shiite terrorists who have been infiltrating the failed state on behalf of the Iranian mullahacracy. By and large there’s little difference in reproduction rates and population growth among the two major Islamic groupings.
Peak oil isn’t a news source.