I doubt the scale that you suggest (especially the newsletter argument, which is typically free to sign up, rather than the monthly subscription that this site is really getting around), and if that was the case, then perhaps the solution is to find a better funding and browsing model that appeals to all rather than saying the solution is to circumvent against the information providers wishes. There have been various attempts so far from Apple News, Flipboard, Brave's browser, and briefly Google's micro-transactions for news, and we probably need more innovation in this space versus less.
Would you have made such an argument previously at the magazine stand? That no one could possibly buy all the magazines to get all the information? Just because Google's index and search is free doesn't mean the rest of the world ought to be.
The only universalizable alternatives are platformization of everything, so people maintain registrations at Instagram, Pinterest, and Facebook and those are now the only information sources accessible to anyone, or sites that contain information allow at least some of it to be accessed without requiring a registration or subscription that is unique to their site. Potentially some sort of universal SSO could solve the problem, but it would require universal buy-in from individual sites and would make privacy virtually impossible.
Note that offering such a thing, if a user decides your information content is really worth it after getting some sample and coming to trust and know you, is different from requiring it up front to see anything at all.