And there are also cultural things in the way to reasonable child rearing. There is nothing stopping people from making communes where groups of parents share responsibilities for a flock of children (it takes a village and whatnot) but we've somehow gotten to a point where it's all on the nuclear family and both parents work and if and only if they're lucky grandparents chip in. It's insanity.

Edit: and I agree that making mean memes about parents is silly and counterproductive.