I have no doubt what so ever that this is true. My son was sent to Afghanistan while in the Marines back in 2010. Before deployment they were given “sensitivity training” to better “understand” the population.
As a result, before he left, he had no opinion one way or the other about Muslims and Islam. They learn real fast once they get there though. He definitely has a very informed opinion now.
He told me that they hate us and it will never change. He felt sorry for some of the people living there trying to just survive and provide for their families while not getting killed by the radicals.
Three-time deployer here - Absolutely true.