I'm sorry that you had to go through all of that and I'm glad that you asked your toxic brother to never contact you again and you let your family know what you think about it - I think, it was very brave and not everyone could do that...

I also think that it is important how he and the whole situation made you feeling and not if anyone has better or worse family members because I found that comparisons do not work so well (for me at least)... because would it make you feeling better if I wrote that my brother was even worse? Or would it be better if I wrote that my brother was bad but not as bad as yours? I think that you have the perfect right to feel bad about it and you don't have to compare your situation with others, especially as there are no winners in this contest...
Take care