all of those "damn strollers" are deposited at the end of the jetway before you even board. They in no way inconvenience you, find another target for your misdirected ire.
Obviously you don't have children, and are therefore uneducated about strollers. Many people don't travel with lightweight strollers because they are cheap, prone to breakage, uncomfortable for both the child and adult that has to hunch over to push it, do not provide adequate sun protection, and are not feasible at all to use for infants. Not that it is any of your business what type of stroller I chose to bring on vacation.
Saying that gate checking a stroller causes potential safety risks is absurd! Most moms can maneuver a stroller out of the way a lot faster and with more accuracy that the average person dragging wheelie luggage. Also by the time the majority of people board the strollers are folded and tucked out of the way in the corner of the jetway. They will not impede people entering or exiting the plane for emergencies.
I can understand AA requiring that all strollers be folded (which I think was a requirement before the new policy anyway) and maybe requiring a travel bag so that they don't accidentally unfold, but saying that only umbrella strollers be gate checked is crazy.
I travel alone frequently with my toddler, there is no way we could make it through the airport without his stroller, and I am not going to buy a cheap umbrella stroller just the privilege of flying AA. I have a hard enough time trying to get him and our luggage to the airport, there is no way I'm going to add a second stroller to the mix. This is an irresponsible policy that unfairly targets children. I'm going to write a letter of complaint, and I strongly suggest that every other parent takes the time to write also.