Importantly, "free speech" is about government, not privately owned spaces.
We believe the government should not be given the power to censor speech, because people are born into it without a choice. Governments could use this power nefariously, and their citizens would have no meaningful recourse.
Nobody is born into Reddit or kbin or Lemmy. If someone doesn't like the rules of a given instance, they are welcome to leave and free themselves of this burden.
You're entitled to your opinion, but the consensus among the medical and scientific communities is that you are wrong. They are the experts here, not you. At some point, blindly repeating falsehoods based on prejudice stops being an avenue for constructive debate and instead just wastes everybody's time and makes people angry for no reason.
You're advocating against life-saving treatments. Of course you're going to get shit on.
There's a Lemmy instance perfect for you then: exploding-heads.
We are more than welcome to decide what behavior is and isn't appropriate in our own community. If you don't like it, then you don't have to be here. You aren't entitled to our friendship.
TOS also has some truly awful episodes, but it's pretty easy to ignore them.
I think the low points of DSC and PIC stick out for two reasons:
Recency bias. It's been 15 years since I last watched Code of Honor, and I rarely even think about it except when it's time to make memes about season 1.
Serialization. You can watch TNG, skip bad episodes like Code of Honor or Sub Rosa, and not really lose out on anything. But if you watch DSC and skip a bad episode, you blow a giant gaping hole in the over-arching story.