In response to Google's monopolistic implementation of Web Environment Integrity, I have a modest proposal:

Open source JavaScript libraries should add bugs which only occur when they find "navigator.getEnvironmentIntegrity" is being used.

Go into a "while(true)" loop. Start throwing exceptions randomly. Just fuck up the page. Make the lives of every developer who is in the origin trial who uses your library completely miserable.

If they want to fork, they have the freedom to do so. But then they're taking on the maintenance that they would prefer to outsource to their community.

If you have enough big libraries doing this, it might make a dent.