You’re absolutely right. There’s so much broken with our existing democracies at the higher levels (and municipally as well, I’m sure), that it is maybe too optimistic to try and extend to influence of the political class into more industries.
I have a hunch that workplace democracy (usually in the form of unions) is one of the lowest hanging fruits to improve the situation overall, and it’s still hypothetically within our reach in much of the global North. That is, it’s still a risk, but it’s unlikely that the army will be called in the open fire on strikers (yet).