Journalism is a mix of fact and opinion. Facts relating to government will be published elsewhere and freely. It is your choice whose opinions ... or as you describe them - private musings - you wish to read. Or if you do wish to read the musings of politicians you could buy a current affairs magazine or biography or borrow library copies ... which you pay for via local taxes.
Newspapers have always relied heavily on advertising revenue. Paywalls compensate for the use of adblocking software. They encourage people to either buy a subscription or buy a paper copy. As others have said, news is business and it’s a business decison whether to operate a paywall. Not all newspapers do. You might like to think about which ones do and which ones don’t and why that might be.
It’s worth pointing out that you only have this free outlet for your opinions because of Mumset and Gransnet advertising revenue.
The cost of your television news is paid for by licence, advertising revenue on free-to-air commercial channels of via subscription to digital TV apps, in other words, we pay for news in one way or another.
Do you still wear you original wedding and engagement ring