Refugees usually get treated not so well by everyone, and no one is exempt here. Even if refugees get a place to stay, the locals are sometimes frustrated with them and treat them as second class. As regards to this migrating ship behavior, I'm against it for anybody. It's dangerous and should not be done just to get European citizenship. Doesn't matter who does it, even non-refugees have tried it. It's not a legal process either.
As for Italy, these migrants should have been saved then deported, never should we humans allow people to sink and die irregardless. And it makes it worse once circumstances of migrants are known. As for OP, Italy is a big player in your region, so it makes sense why you criticize them. I don't know the full extent of Italy's policies in North Africa so I'll leave that to you guys to discuss.
As for mass migration, obviously Europeans like to remain with their heritage. Sometimes it makes some of them racist. But, Italy is known to be important for Christianity and I'm sure Christians want it to remain a Christian nation in foreseeable future. That I agree with too, it's part of their history, culture, and played great role in Europe's fate. Muslims would be upset if Christians began mass migrating to Saudi Arabia, since I'm sure we want that to remain Muslim too. The history and significance is too important for both peoples.