I think you're misreading the parent comment. They're not advocating for tax funded news organizations, but instead for a stronger social safety net. They're theorizing that this would enable people to pursue journalism without fear of losing their livelihoods because of struggles in that market sector.

I'm not saying that I agree with this position. I think that without capital, the news industry would shrink and struggle even with a strong social safety net to support its journalists. Personal blogs cannot fully replace well funded news organizations.