People usually call this salami slicing when a group does it to their ideological opponents. But sometimes it is a wholly internal, self-driven dynamic where the least committed members of a group tend to quit first, and the group ends up with more and more radicalized members over time.

I've seen this called Evaporative Cooling as an analogy to physics.

https://www.lesswrong.com/posts/ZQG9cwKbct2LtmL3p/evaporativ...

It seems like every progressive group is slowly forced to adopt the platform of every other progressive group until they are effectively politically sterilized.

That reminds me of Taleb’s essay “ The Dictatorship of the Small Minority”.

https://medium.com/incerto/the-most-intolerant-wins-the-dict...

It’s an easy mistake to make. Progressive groups need be be better at saying “that’s a nice campaign, but it’s not my campaign. Good luck with that.”

It makes fruitful discussion hard. I support socialized healthcare, but for me it's down as the 5th or 6th greatest problem facing the US medical system today, and I think implementing only socialized healthcare without fixing these other problems would create a system destined for failure.

To many people, that means I don't support socialized healthcare.

> To many people, that means I don't support socialized healthcare.

Well, in a way, you don't. Because you apparently think socialized healthcare should not be an agenda priority in the short term, and what's the purpose of political activism if not agenda setting? Many other people who "don't support socialized healthcare" at this time might well regard it as worthwhile, if the other blatant issues w/ the healthcare system were addressed first.

And there it is. No it does not mean that. It simply means there are only so many hours in the day and a person only has so much time and energy and they are devoting that to other things right now.

Sounds like a twist on No True Scotsman to me.