No they dont. But they love it when this false Info gets continually parroted.
The EU is one of the biggest and most attractive markets worldwide. Companies will NOT leave it. Not every asset can just be up and moved. Panama Papers and countless other sources also show that anything that CAN be moved is already there.
If you don’t mind dying, tell them and tell them they needn’t save you. I would tell tree and ask them not to do that, at least with me. I’d prefer if they wholly didn’t but meh
These days I play more 13A and it explicitly discourages such behavior too