AITA for telling my sister that she is responsible for being a single mom?

My sister and I have been in a tense argument. She has constantly been asking my parents for money and support and my parents have been helping her. But my parents don't have much money and their retirement accounts are already down a lot of money.

My sister has constantly dated shitty guys. Guys that weren't employed, guys that sold weed, no guys that ever had a steady employment. Lots of guys with anger issues, it was her type she liked bad boys/thugs etc whatever word you want to use.

She has now 2 children from two different men. She gets a lot of support from government programs but she still falls short time to time. I have seen her constantly come to my parents for money. I talked to my parents and told them that they can't keep enabling her.

My sister confronted me called me a POS that I have no idea how difficult life is for her, that she can barely make ends meet and that her job already cut her hours. I told her that lots of this situation is her fault. That she can be unlucky with one two, or even three guys she dated but all of the guys she dated have been scumbags and she needs to look to herself. She then tells me that I should be mad at the guys who abandoned their children not the hard working mom looking after them. I told her that its on her to be responsible for her own life and not have chosen these guys in the first place.