There are very serious articles about young adolescents being radicalized into fascist movements and personal testimonials of such in YouTube, along with many videos, most commonly by leftists about how this works and very rarely a guess at what to do about it.
There are also often memes about young people entering politics, like this video or this video assuming that and then satirizing how young, presumably privileged people when it comes to social matters (because otherwise bad personal experiences will inform your beliefs and this will be more than a poorly done intellectual exercise to you) flip flop between every political belief like it's nothing, alongside memes satirizing how young conservatives are introduced to their politics by edited clips of what are supposedly SJWs out of context and how farcically (distressingly) ridiculous it is to be introduced to your beliefs by these videos, especially when these sometimes real but extreme regardless examples of the left's presumed irrationality are much less harmful than the conservative extremes.
A lot of this talk and memes concerns or satirizes radicalization of people after they've been politicized and occasionally in the case of the serious articles, what to do with it. But I feel this focuses more on the consequences, which is fine, but not everything worth looking at.
So back to the title question, how do you think someone/people should be politicized?