My (32m) sister in law (33F) stormed out of Easter dinner over a off hand comment I made and now is accusing me of being a racist.

here’s my understanding of what happened:

A family member showed a video of people “cold branding” themselves on TikTok

Sister in law said something akin to “it’s insensitive for white people to brand themselves for views because white people used to enslave and brand black slaves”

I said “well, people enslaved people”

Sister in law freaked out and was like “are you kidding me!! Then her mom said it was true and that Irish people were enslaved at one point and she said that’s not true and she couldn’t talk about this anymore got up and hyperventilated in a nearby room then came out and screamed at us for “gaslighting” her, then stormed out and sat in her car while her husband got their two young kids and left.

All I meant was that if you go back in history and do some research you’ll see that every skin colour has been enslaved at one point or another, usually more related to religious affiliation than colour of skin, and because it was related to branding I feel like chattle slavery was the type of slavery she was referring to which is a very old type of slavery…and also who really cares if someone gets offended over a stupid video on TikTok?? You can’t base your choices on whether or not someone’s going to be offended am I right??

She’s now texting her sister (my wife) saying that she “still feels unsettled and isn’t ready to make any decisions/talk about it yet” and is basically saying she might not come to family dinners anymore