This isn't true. This is only a recent politicized phenomena. It never used to happen where people would excuse letting migrants drown. And I highly doubt any government rescue team checks your passport before dumping you back in the water. This only happens because of how highly politicized this issue is.
You're right actually, I can't find a source that says governments have a duty to protect their citizens, so by extension, there's no argument to only use your forces to protect citizens and not non-citizens
This isn't true. This is only a recent politicized phenomena. It never used to happen where people would excuse letting migrants drown. And I highly doubt any government rescue team checks your passport before dumping you back in the water. This only happens because of how highly politicized this issue is.
You're right actually, I can't find a source that says governments have a duty to protect their citizens, so by extension, there's no argument to only use your forces to protect citizens and not non-citizens