I think it's pretty horrible that @YouTube is putting political attack ads before kids videos on their service. My kid wants to see cool toy videos, not politicians bashing each other to find out who is less reprehensible. He's 4. Algorithm or not, shame on you.
You can always manage the ads that you see on YouTube by making changes to the preferences here: https://goo.gl/ZB1qVL . Also, you can submit feedback about ads using our Adwords feedback form: https://goo.gl/KcTgwH . Hope this helps.