You don't have to put your content on google, you can add yourself to robots txt and google will respect that.
You want to be able to force google to take your content, AND force them to pay for being forced to take it.
A better idea would be coming up with plans on how to break up googles market share to split it among multiple smaller search engines which may allow you to bargain for paid content with.
The observation is that Google makes money from eyeballs on ads. The reason they make money is that they can lead people to the content that they want.
The content that they want comes from websites, which benefit from the traffic google sends their way. If Google stops sending traffic their way, they won't block google in robots.txt: they'll simply shut down, because they're not making money off the eyeballs on their site.
So, it's a symbiotic relationship: Google sends traffic to sites. Sites send their contents to Google. If Google tries too hard to keep eyeballs on their own ads, then they become a strangler vine on their own ecosystem, depriving it of the resources that it needs to grow.
There needs to be a balance between the traffic that it sends to sites, and what it surfaces directly on the SERP.
The value of any individual site on google is quite low, there are plenty of other sites to use. If a significant number of sites decided to pull their content from google and make deals with bing, google would reconsider how they operate.
There is no need to have governments force companies to pay each other when they are free to share content or not share. The government should however ensure there are no monopolies which prevent this kind of action.
You missed the point again. This isn't about forcing anyone to pay. This is about Google strangling their ecosystem in exchange for some short term growth.
The OP post was about having governments force this exchange. If you are talking about google optionally taking part in it, I'm sure the finance people at google are capable of working out when its worth it on their own.
You want to be able to force google to take your content, AND force them to pay for being forced to take it.
A better idea would be coming up with plans on how to break up googles market share to split it among multiple smaller search engines which may allow you to bargain for paid content with.