"if anyone actually got fired from their job for mistaking someone’s pronouns I would be opposed vehemently ... that to my knowledge has never actually happened"
You didn't look far.
https://www.huffpost.com/entry/peter-vlaming-transgender-student-lawsuit_n_5d9600bce4b02911e116d773
https://www.insidehighered.com/news/2021/03/29/court-sides-professor-who-repeatedly-misgendered-trans-student
https://nypost.com/2022/10/28/coach-travis-allen-suspended-for-misgendering-trans-student/
https://www.cbsnews.com/news/pamela-ricard-kansas-fort-riley-middle-school-teacher-disciplined-misgendering-student-95k-settlement/
https://www.latimes.com/california/story/2023-03-01/l-a-county-prosecutor-hannah-tubbs-case-suspended-misgendering-defendant
https://www.washingtontimes.com/news/2023/may/19/indiana-counselor-sues-after-being-fired-over-crit/
