And dealt with illegal immigration by giving everyone a grace period so they could become a legal resident.
Or the tons of corruption stories generally surrounding those parties.
And they often promote unsustainable programs to boost their numbers and have zero fiscal responsibility since they generally don't look ahead beyond one election cycle.
The cause of the rise of the right in Italy has many causes and whoever claims it purely has to do with hatred of the left or immigration is simply telling you lies. It goes quite a bit further than that and for that you have to look at what right parties are rising and how they differ even regards to ideology.
another interesting thing is the french-italian political feud going on right now. Where the Italian PM is actually supporting the left leaning gillet jeunes movements.