The US also has public pensions (social security payouts rival or beat many EU countries) with dramatically better tax free private options on top.
Also, the US has free healthcare (Medicare and Medicaid) for roughly 50% of its population.
Expanding that to 100% doesn’t suddenly make them a bad country to do business in.
You think OpenAI is going to close up shop and move to Mexico if the US expands single payer healthcare? That would actually make it even easier for businesses to operate in the US!
Explain to me how expanding US single payer healthcare suddenly makes the US a worse place to do business in than Europe?
Companies would love not having to deal with the complexities of 401ks and employer health plans.