Those who speak of chickens coming home to roost never seem to ask what chickens were coming home to roost when the unprovoked armies of Islam swept across North Africa, east to India and Malaysia and when they destroyed the Visigoth empire before they were finally stopped at the Gates of Vienna or by men like Charles Martel?
What had innumerable Africans done that the Mali had enslaved them? What were the misdeeds of Europeans taken to be slaves while commerce was disrupted and whole societies made poor by Muslim pirates?
And the Muslims crow about a paltry few campaigns by Europeans in response to all that aggression? But I bet no Muslim back in the day said it was their chickens coming home to roost!