There are a multitude of companies running London Buses........among them Go-Ahead-Group.......Newcastle based with operations in
Singapore Germany Ireland Norway.
So it isnt only one way traffic!
Your own Metro is German owned.
Nissan and Toyota are Japanese owned but are tremendous for the UK economy and the partneship between Japan and British workers has produced two of the most efficient factories in the world.
Uk Companies also own subsidiaries all over the world so an element of Globalisation is in our hands. We just have to ensure that we have sufficient by way of strategic assets inside our border.
So Overseas investment in the UK is great and vice versa as long as the strategic issues are managed!