AITA for refusing to pay for my MIL deductible after she smashed the gift I gave her?

Long story short, I was on Twitter a while ago and saw this ad for a political mug that made me chuckle, so I decided to buy it for my conservative mother-in-law as a gag gift because I loved the idea of the mug being gifted to someone who leans more conservative.

Last night, it was my MIL’s birthday, and I was getting ready with my wife to go to the restaurant where we would be eating. My wife saw the mug at home before we left as I was packing it into a gift bag, and she rolled her eyes, saying I was being immature, but she laughed at the mug, saying, “Well, it’s kinda funny, I’ll give you that.”

We eventually got to dinner, and the whole family was having a good time. Then, at the end, we all gave our gifts, and when my MIL opened mine, she realized what it was and had this sour look on her face while the mug earned a couple of chuckles. My sister-in-law jokingly teased her, asking if she liked it. She just stood up and excused herself to use the bathroom. As she was about to leave, my sister-in-law said, “It’s just a joke, Mom,” and my MIL grabbed the mug furiously off the table and slammed it on the ground, shattering the glass. A shard gave her a pretty sizable cut on her ankle.

She had to go get stitches for the cut, and my wife said that we should pay for the deductible because she claims I’m the cause of the entire incident, but I said no. she got mad at me, telling me that I was being immature. We got in a fight about it and I said that it’s ridiculous that I’m being blamed for her own actions. We ended up paying for it anyway. Wife is still kindof angry and my MIL is still furious and refuses to talk to me saying that I’m a “communist”

Edit: this was the mug for reference