AN has been gone in like forever, the MSI even more so, so I have no idea where were you aiming at there. Salvini's stance has always been aimed at crippling
illegal immigration and the human traffickers who profit from it, not
all immigration from certain countries à la Trump - as well as requesting the EU to revise the Dublin Convention (and for good reason, Italy was drowning in debt already, so much so that it couldn't sustain millions of Italians leaving in literal poverty. I see no racism in that. Nor do I see
CasaPound is known for illegally occupying buildings,
disregarding LE directives when organizing protests and clashing with them, and even
threatening LE with the prospect of "bloodbaths" (sic). The police doesn't like that. CasaPound doesn't like the police. Your friends' sisters might keep her ideas to herself, or might not have anything against the police herself, but her personal experience doesn't really account for much.
As to chat groups, sure, there are bound to be fascist cells in the police. And there are bound to be neo-BR cells within the anarcho-communists. And there are bound - oh wait, that's not a hypothetical, there
are chat groups where magistrates were literally caught saying "Salvini did nothing wrong, but we have to go after him for political reasons". Truly a bad moment to bring chat groups into the discussion. Palamara & associates send their worried regards.