you can’t unless the other person wants to. they need to realise their mistakes and be willing to never commit them again and attempt to amend them if possible.

a lot of people taken in by fascism were originally and continue to be in poor living conditions. if they are first guaranteed all basic human rights & the required needs to live, talking to them about their politics will be a lot easier.

does this mean people who helped commit genocide should be allowed to live as if they’ve done nothing wrong? definitely not, they should have all tools that they used removed from them, be separated from their prrvious co-conspirators, and all other measures required to keep society safe. does that mean that they should all be forced into concrete boxes with no rights? also no, as that is depriving them of their humanity, and removing any chamce of them cooperating.

the real method of removing fascism is very complicated and highly dependant on the specific situation. the consent of the broader community needs to be taken into account, and restorative justice needs to be achieved.