Looking back at the history of England. We have had wave after wave of immigrants/invaders. Each wave brought a period of tension. That period was followed by a period of innovation.
The new people, with new views means old ideas are re-evaluated. New skill, flavours and modes of thought became part of our culture.
Even our language improved. Part of English's power is the level of nuance with word choice. A loft of that comes from melding multiple root languages in.