Maybe the anger from these athiests is driven by deeply held fear that they’re wrong. Or, much like the gay-mafia out there, a fear that they’re beliefs and/or lifestyle will NEVER be considered normal or acceptable.
It’s not that they fear they’re wrong, it’s that they know they’re wrong, viscerally, and don’t want any reminders around of that fact. That’s why they hate you so much.
Same with the abortion debate.