The people who dream those dark dreams never look into the implications.
It won’t be garden world with slaves serving you grapes, it will be a dark age. Despite what post modern historians have said, the Black Death was NOT a good thing.
Ironically, it may have been ebola.
Actually they’ve dug up bodies from mass graves from the black death and that was another microbe.
It’s suspected that the Athenian plague may have been ebola however. There were trade routes into sub saharan Africa then. Not many though.
Imagine some Athenian trader bringing home a cage full of infected fruit bats for Athenian elites to enjoy at the next banquet.