Capital is not only a factor of production it is also the most mobile of all the factors of production. That’s taught in Global Econ at the graduate level. I took that class last semester it was awesome. Our Prof shot down every progressive marxist kid that though they knew a hoot about real world economics with cold hard facts and GAO data.
Sounds like an awesome professor and class. All I had was two quarters of econ on my way to an accounting degree, then 25 years as a state bank examiner and 6 years on the banking side. I missed some of the good stuff along the way. The most mobile factor of production makes sense, though, and the highest corporate tax rates in the world is gonna scare some of it away. I hate commies . . . this was a great place until they came along.