ANSWER #1: Accept your "Welcome to the club" badge like the rest of us.
ANSWER #2: Move on.
I know these probably seem like cruel answers, but the bottom line is everyone has something they can legitimately blame their parents for doing, or not doing, that negatively impacted their life. At some point, however, you have to be an adult and let it go, if you're truly to move on with your own life. After all, in case you haven't heard, the best thing about childhood is that it's over!
Becoming wealthy, getting out of debt, saving, investing and the like cannot take place until you take ownership of your life. Let's face it. The blame game is just not sexy. It's also not a trait of any wealthy people I've ever met.
Remember, your parents are someone's children, too. They may have learned their poor financial habits from your beloved Gram and Pops. Just be happy you have a chance to break that generational cycle. All you can do now is make sure you do your part to expose your family to a totally different mindset and blueprint towards money and wealth-building principles.
It doesn't matter how old you are. If you're still alive, then you've still got time to correct the wrongs of your childhood. So stop complaining and start working on your financial future.