That line in particular isn’t an ideology, it’s a fact. Committing murder is illegal, but if I want to, I can still murder someone. More generally, systems can be put into place to prevent behaviour, but anyone can still try to get around them.
(I’m not a full on anarchist since it doesn’t seem practical but I do agree with many of the ideals.)
The people that listen to trump speeches and think they’re anything other than batshit insane won’t find anything wrong with Mein Kampf either. From the parts I’ve seen it’s similarly incoherent, just with better grammar.