Not likely to survive 1st Amendment challenge - it is possible to compel somebody to certain speech as a result of losing a case, but doing this as a prerequisite when the case has just started is not likely to fly. Otherwise I could force Facebook (or any other platform) to publish anything just by suing them - and anybody could sue anybody else on virtually any grounds.

https://about.fb.com/news/2025/01/meta-more-speech-fewer-mis...

"We will allow more speech by lifting restrictions on some topics that are part of mainstream discourse and focusing our enforcement on illegal and high-severity violations."