This sounds like a twitter post to me. Or maybe local news agency. You booked seats together for your family, including minors. If AA shuffled seats around due to MAX swaps, then the agent should have tried to help you get seated back together. If the agent's motivation for not helping you is racist, then that needs to be reported. Sitting you 15 rows away from your kids is unacceptable - while it's not ideal that your kids couldn't use the bathroom because the man in the aisle was sleeping, it's better than the million other scenarios that could have happened but luckily did not.