The post completely ignores the legal framework for subsidiaries, following the same logic McDonald’s workers in the EU are subject to US laws, because McDonald’s is a US company.
I work professionally with IT integration, from my personal experience, many business owners are well-informed about the issues, but their main focus is not privacy and personal data. Two of the main considerations for business, could they lose access to services and their data, and if subscription prices could explode because of counter-tariffs on US digital services.