Priorities are in the wrong place. What would you say to a family member?

Not sure if I've mentioned this but I have a twin brother. One would think that twins would be closer than any other sibling pair. . . . well, we're not. We couldn't be more opposite. I honestly think my brother is addicted to sex because it was him paying for escorts and getting caught that caused the end of his second marriage. He would literally take the girls home and take naked pics of them on the bed he shared with his wife. And we're not talking about high class escorts but Craigslist and Backpage girls who will have sex with you for $50 or $60 depending upon what you wanted to do. Well, him and his 2nd wife divorced and that forced him to have to move back home with our parents because they had to sell the house they built from ground up. He walked away with about $26k and no place to live. Instead of banking that money we goes out and buys a used 2017 Tahoe (cause that's what he's always wanted) even though there was nothing wrong with the Trialblazer he was currently driving. Paid for it outright and spent around $17k on it. He ended up sleeping on our parent's sofa for a few months until he and his grown son found a new apt. Fast forward: When covid hit as we all know there was a moratorium set to where no one could get evicted from their place due to lack of paying rent. Now, that didn't mean you didn't owe the money. That was geared more so to people whose jobs were affected by covid and were laid off. My brother lost not one day of work during the pandemic. He works as a medical tech in an optometrist office. He also did 8 years in the USAF. He just apparently stopped paying his rent. Last Aug I found out that when that moratorium was lifted and people now owed all that back rent my mom and two of my sisters had to go in together and loan him around $5000 to get his rent caught back up or they were going to evict him. My mom took money she was going to use for her dental work and gave it to my brother. Rent paid, crisis averted. Yesterday I get an email from one of my sisters telling me that my brother and nephew were being evicted from their apt yet again and they they had to be out by days end. So now he's back at our parent's house with his 24 year old son sleeping again on their sofa and living room floor. My brother never required that his son help out with bills and he admitted that there would be times when a month would go by and they never eve see each other in the apt. Here's the kicker. The Tahoe that he's driving he recently wrecked by running into the back of another person because he was listening to the radio and wasn't paying attention. The plates on his truck expired in Nov of 2020 so he's been driving around with expired plates for more than a year. Given that he had to put his truck in the shop to get it fixed his insurance deductible is $500. The damage was only to the front bumper and it was not preventing him from driving his truck. That repair could have waited. He should have put that $500 on his rent. Well, he then sends out a text to the family group chat showing everyone the new Cadillac rental car he was getting while his truck was in the shop. Again, it appears to be all about status and how he looks. In Sept of last year his church, where he is a deacon, had their anniversary gala which was a formal affair so he goes out and buys a new tux and the whole package to impress the people at his church. Again, if you know you're getting behind on your rent you say no to some things and cut out other things. I told my sister that as a 52 year old man I would be ashamed to look my mom and sisters in the face after literally blowing the $5000 they gave me to help keep me in my place and now several months later getting evicted anyway because he's gotten behind on his rent yet again. My oldest sister had a talk with him and our nephew saying that every week each of them would be giving my parents $100 a week to stay there and they only had 2 or 3 months to find another place and get out. The other siblings are totally on board with it. The problem is that mom won't put them out after those 3 months, but I bet my sister will. It's going to be very hard to find a new place with an eviction on your record. He's got his priorities in the wrong place. What do you say to them?