Germany just then took that belief to its natural conclusion. Communism has stood for much the same thing, with much the same results. This philosophy must be watched and is cause for concern. Don't get me wrong. I don't buy most slippery slope arguments.
Some centralized control has benefits.
Pretending that all Germans were evil, or that what happened over there could never happen again, is naive. We must be diligent and cautious, without being close minded. We even allow such things as a govt. Remember, there are trade-offs. To fail to realize that different communities have different standards and objectives, and to think that a central board can take all those considerations into account, is terminally naive.