Centralised "right to disconnect" regulation is what will protect workers from sweatshops?

I'm not saying there should be no labour regulations in EU, just that there is a lot of detailed regulation that is more appropriate to do on a national level where it can take local culture and priorities into account. And the fundamental EU principle of non discrimination based on nationality should ensure that for example a Rumanian worker in France has the same "right to disconnect" as a French worker.

I can't see why Swedes can't decide that they don't mind work emails during the weekend while Germans decide they want to have email free vacations.