Well, this is the thing though. Did they have anybody else to look after them? Was the dad involved?
I have a husband and I have young kids. But I have no other family. If my husband was an absent father / not interested or whatever, and I died/killed myself....my kids would end up in care. I have experience of the care system and it is horrific.
If this woman was in such a bad place that she felt there was no way out but to kill herself, she was possibly terrified about how her boys lives would be. In care is bad enough but in care because your mum killed yourself? What would the chances be of those boys having a good outcome?
I do admit there's a lot of "if"s in the above. I don't know the full story, nobody does.
Calling her "evil" just doesn't sit right with me. What was her objective? To call her evil suggests she got some sort of enjoyment out of it and I just cant believe for one minute that that's the case.
"Evil" is what I think of in the cases of the mothers/parents who abuse children, or abuse them and then kill them, or neglect them and abuse them. Can't think of the names of specific cases off the top of my head, but you know the ones. The little boy who was killed during lockdown, told to face the wall and not given anything to eat or drink. Killed by his father and his fathers girlfriend.
Those people I think of as evil. This woman I think of as desperate and tragic.