Well they did. https://newspunch.com/american-companies-nazi-germany/ https://newspunch.com/american-companies-nazi-germany/ This continued up until the US ac

Well they did. https://newspunch.com/american-companies-nazi-germany/ https://newspunch.com/american-companies-nazi-germany/ This continued up until the US actually declared war on Germany. Countries don't particularly care what other countries do in their borders. It's only when they start threatening other countries that you'll see hard actions taken.