Is it normal to tell your mom she shouldn't have had kids?

So my mom came in my room and just started talking about this stuff. We talked about a lot and stuff about growing up came. She said how she always hoped we would grow up like my aunt raised her kids,in like this perfect little world and I said well it was your decision to raise us in the situation you did. She got really upset and I told her its her fault for choosing to have kids with someone she knew was an alcoholic and wasn't going to change. And she cant expect a fairy tale from an alcoholic and she got really upset.I feel very bad about saying this and I know it had to hurt her a lot. I love my mother and she made the best out of the situation, however I still feel as though she made a bad decision to have four kids with the person she did.