That's about the most ignorant statement ever made. As if being mormon, probably the most ethnically diverse denomination of religion in the world, has anything to do with the physical strength of a person.
First of all, no girls are all that strong. Second of all, if you yank any girl down to the ground hard by her hair like what happened here, a girl is going to be hurt and probably crying.
Oh, and you want to talk about strong?
How about mormon women walking in the snow for 1500 miles bleeding through their feet, carrying their sick and dying children, with nothing more than the clothes on their back, because they were driven from their homes at gun point, settled a new valley and started all over again and made it. If anything, mormon women are as tough as they come.
Next time, you better have a fucking clue before openiong your mouth.