I think/suspect he meant if you educated children about values, fairness, compassion etc, then they wouldn't be Tories. No?
Exactly
If you follow the link it takes you to the Guido Fawkes website. The blogger who founded the site is extremely right wing. He described himself as "anarcho-libertarian, or Thatcherite on drugs". If you just follow the link then you'll see a right wing analysis of the speech. I haven't looked elsewhere, but I should imagine the Sun, Daily Mail etc will have the same interpretation.
I actually watched the bits of his speech that are online.
He said that he'd never met an bad 4 year old. I think that implies that children are basically decent and if they're well educated then they should retain that decency, are likely to want a fairer and more equal society and that those can be seen as Labour values.
He also said that if you educate children properly then societal problems such as overcrowded prisons will also reduce. Since a high percentage of people in prison have literacy problems and a lack of qualifications that seems reasonable. A lot of people in prison also have problems with drink and drug misuse. Although addiction can hit anyone, it's more prevalent in deprived communities. A decent education can help to combat the problems in those communities.
He didn't say anything about teaching politics to children let alone endorse political indoctrination. Anybody disturbed by what he said is either scaremongering or has succumbed to scaremongering.