The best way to make people, regardless of whether they're a normie, an SJW, commie, socialist, centrist, whatever-label-you-want, start to realise and see the things around them is to get them to question something that is otherwise taken for granted.

You cannot preach to everyone, for not everyone really cares. But the best way to get through that apathy is for a seed of doubt to exist and grow. Some question to exist that is considered forbidden to ask. Because every time that topic gets brought up in some way, that question will be there too.

And for a lot of people, that question often is "are you against pedophiles". And leftists are routinely saying "no, we're for them", to the point that other leftists are even going "wait, what the fuck?" and having doubts. Not enough to leave the collective, but enough that a seed is being planted that could very well grow.

You cannot preach to people who don't want to be preached to. But cracks can grow, especially with seeds of doubt.