Individualism and Collectivism Slavery Tweak
This does absolutely nothing except make it so the various slavery precepts have nothing to do with individualism and collectivism. This is due to a personal pet peeve, and if the mechanics are all that you're interested in, there is no need to read further.
Otherwise, I apologize in advance...
It's About Equality, Dummy!
There is a reason that Stellaris abandoned the individualism/collectivism dichotomy, and it's because it makes no sense. Why is individualism associated with anti-slavery? Can individuals not own slaves? Are raiders not the ultimate individualists? Why are collectives inherently pro-slavery? Are there not anti-slavery collectives based on free association?
Individualism and collectivism are purely stylistic choices - when your company cuts your wages, increases your work hours, and lays you off, they use collectivist language ("It's for the good of the company!"). When you ask the government (controlled by a consortium that includes your company) for help with your healthcare, you get individualistic excuses ("Pull yourself up by your bootstraps, commie!"). Collectivism when they need you, rugged individualism when you need them.
The actual difference you're looking for is egalitarianism vs. authoritarianism. Egalitarians believe everyone has equal rights and equal say, and have an inherent faith in democracy. These are your socdems, anarchists, socialists, left libertarians, etc.
Authoritarians believe that not every life is equal, and some people should rule over others, and they detest democracy. These are your fashies, monarchists, theocrats, plutocrats etc.
In the middle you have people who believe in some equality and some hierarchy, with varying levels of democracy. These are your "classical" liberals, right libertarians, etc.
Individualism is almost entirely a [i]cultural[/i] thing. This is why you have people both proclaiming to be [i]individualists[/i] and [i]patriots[/i], two things that ought to be oxymoronic. The actual difference is between the egalitarians who respect individual rights and detest slavery in all forms, and the authoritarians who don't respect individual rights and are cool with slavery.
I'm not saying there's absolutely no role for individualism and collectivism in Rimworld, we need it to model crappy sci-fi tropes common in literature, but it should be subordinate to the conflict between egalitarianism vs. authoritarianism. Egalitarianism and authoritarianism really ought to be added to the base game, but since they're not, quick fixes like this one will have to do. Maybe me or someone else will make a proper mod addressing this issue more completely in the future.
If you needed evidence that we need comprehensive mental health care...
...just read the comment section. Dear god.