In his case, I don't see how he can blame the NFL without also blaming Alabama, his high school and other teams he played on... Still, I hope he is able to get the help he needs.
I believe as a player with a 7-year career, he has "retirement" benefits such as insurance through the NFL. Also, they have a committee who oversees a $1billion fund related to CTE (research, benefits/settlements for ex-players, etc).