How many American corporations are there that can be invested in that don't simply make stuff in other countries?
Berkshire Hathaway. Look at their owned companies: BNSF, Geico, Duracell, Dairy Queen. True, Fruit of the Loom has offshore manufacturing and probably a few others, but the majority of 360,000 employees are in the USA. BRK-B stock is at $280 a share today so it can be owned by anyone.
Use 2ndvote.com to find conservative and neutral companies to do business with.