Please just let it go. Trust me no one else there is thinking about it. There will be some insensitive people in AA just like everywhere.
It happens. I have been at meetings where there were fights, people with 28 years sober acting like total a-holes.
We are all on a spiritual journey and we all make mistakes and for all you know they could be regretting what they said realizing later the effect it may have on you or not. But either way it was one experience and it is over and I highly doubt you will have that same experience again. If it does happen again. Just find a different meeting. They should certainly enforce the no Cross talk rule.
Some people who have been around in AA for a very long time seem to forget what it was like in the early days of their sobriety. That they were vulnerable, but AA will also teach you how to have a thicker skin and how to not let anyone or anything steal your peace.
It'll be ok. Just let it go .I hope you will go back.