That's not really something one can prove (that they want them to die) so I would avoid that kind of rhetoric since it doesn't add much to the conversation, other than polarising the issue. In reality it is a complex issue, since these countries have to bear the burden of all north African migration attempts. Their solution was to reduce the number of rescues by making rescue boats return to port, this in theory would mean the passage is more dangerous and thus disicentivize illegal migration, and thus less of a burden on these countries. Obviously reality is different, these people are fleeing their country because they would rather risk dying in the Mediterranean then continue living as they are, so this "solution" just leads to more deaths. Truth is that EU needs to help share the burden of these countries (some form of migrant relocation system based on populations etc) so then they cannot justify shitty laws like the above.

Those are the ones intercepted by the libyan coast guard I imagine (I am by no means an expert on this topic, but I live in Malta and it's an issue I try to follow)

In the meantime people are dying in the mediterranean because their rescue ship is seized by italian authorities. Fucked situation