See, your comment is another example but from the other side, and it's exactly how people slide into the extremes. They interpret the same facts the other side sees, but in the worst way possible.
The lady that killed her kids went cuckoo, killed her kids and jumped out a window almost killing herself. Nobody is defending baby-murder, they're just saying 'Yeah, crazy people should get help BEFORE this junk happens.' The jurors agreed that she wasn't responsible for her actions at the time, and they weren't all left wing.
The other one... I think that you're talking about Carmen Lizet Puch? Literally no-one anywhere is defending that one. Maybe some weirdos on fringe internet forums, because there's always another nut out there willing to defend anything... Nobody in the mainstream from either side is defending it, but some right-wing folks are intentionally strawman'ing it as if someone were.
There's a lot of BS coming from both sides that could be avoided if the larger world followed the HN advice to always argue against the best version of the other persons argument, rather than to try and construct the weakest possible version and attack that.