[jfman]

Events don't need to happen simultaneously to draw legitimate comparisons, nor within the same geography. Especially if the tragedies are supposedly human ones.

Nobody sincerely believes the loss of all human life is a tragedy, neither that it's a human duty to do so. It's the kind of trope people roll out in exactly this type of occasion to silence critics of how the discretion is actually applied in the real world by policy makers.