The toxic family situation was generational, and the toxic part was in place long before my mother was born. So it was tough on her as well. She was a single mother with her parents living next door, and she felt responsible for three generations of people at once. It was a lot to take on even in a healthy situation. Some of my mother's choices were better than others. And yes, there were some happy moments.
I don't know how things are with my siblings, as we don't speak. I think there is hope, though; we are the elders now, our mother was the last of her generation. In our separate ways, each of us is free now, in a way that we were not before. I'm still keeping my distance, though, it is the healthiest way.