Husbands discussion ended with a bang

The last few days my husband has been discussing animal cruelty/veganism with his family. Do they know what happens at factory farms? Grocery budgets and time. Etc etc.

His sister said yes she does know what happens and will never go vegan because she likes the taste of meat. Our sil and my mil both basically said yeah and it’s something they’ll just have to always struggle with. His brother said he’s always viewed the whole vegan thing as silly.

Anyone dealt with this and changed their minds?