“Recruits”? The concern isn’t people joining something, it’s them agreeing with the message. Less obvious approach already works just fine (probably even better than direct approach) all over the world in selling the message and the hate, so if you think this mandatory year of jail will have much of an effect on that, I have a few other “tough on crime” approaches to sell to you. Might even declare War on Hate in style of War on Drugs.

As usual, people want tough and immediate measures, forgetting about a longer term approach and working to tackle the causes of why this messaging sells so well.

I’m not sure why you think being less obvious is just as effective as being overt.

Oh I don’t think it’s just as effective. It’s not as effective, it’s even more so since it’s easier to get people to agree if you start small and then drop hints slowly. Obvious approach will just drive people away. You don’t start with "sieg heil kill all the untermensch ", you start with something small, saying how foreigners are stealing your jobs or making the housing market suck. Then you can guide them in the direction you want without ever saying it. And shit like that is almost impossible to go after in any sensible way, without a risk of punishing people on very questionable grounds.