How Would You Feel About/Handle This?

EDIT TO INCLUDE THE FACT THAT MY BROTHER IS 43 YEARS OLD YALL............... Quick backstory- my brother has a drinking problem. He was arrested for a DUI among other things in Feb. It was a first offense so he got probation for a year, fines, rehab and lost his license for a year. He wasn't working during this time and just recently got a job. MY mother was given $12,000 in July or August for part of the sale of her mothers house after she passed. Only 4000 was spent on her a new roof and fixing her central heat and air unit. Leaving $8000. She also has a decent paying job. She paid IDK how many of his house payments that he had defaulted on as well as buying him a phone and new odds and ends she thought he 'needed'. As well as buying his 3 boys random things he should have been providing. She let him use her vehicle constantly even though he has no license and continued to drink. Well he was arrested yesterday for drunk driving. Nearly ran over a lady in a parking lot. He was of course taken to jail. My husband has some money and people know it. We have 2 sons and my mother watches them twice a week on her days off so I can work part time while my husband is at work. My mom knows how I feel about my brothers behavior. That wasn't really a quick backstory but now you are caught up. I just received this text message from my mom and my thoughts are all over the place about it and I havent replied yet. How would yall handle this? I need advice PLEASE.