> Open access publishing is the new business model that is more lucrative for publishing industry and it is basically a tax on research activities but paid to private entities and mostly paid by taxpayer money

In addition to what @tokai said, I think it's also important to keep in mind that before Open Access the journal publishers charged subscription fees. The subscription fees were paid by universities and that was also likely largely taxpayer funded (e.g., using money from overheads charged to grants).

And under that model the publishers would also do all the scummy things you're familiar with if you've been say a cable TV subscriber. For example bundling four crap things with one good thing and saying that's a 5-for-1 offer when actually it's just an excuse to increase the price of the thing you actually wanted.

This isn't the golden age we might have hoped for, but open access is actually a desirable outcome even if as usual Capitalism tries to deliver the worst possible version for the highest possible price.