They have changed their practices to a global business market.
The US is just one small country so we no longer matter to them.
These businesses keep all the benefits, safety, security, stability, of doing businesses from inside the US but they no longer care about the US.
When once great companies become just subsidiaries of some barely recognizable global umbrella company, then we cant be shocked when they have no loyalty to the nation.
Look at the UK and Germany. Many of their great companies are owned by people from Asia now with just the company’s name being the only British and German thing about them.