No. Most right-wingers are very nice. Literally my entire family is right-wingers. My best friends are a fundamentalist christian and a Trump-supporting Sikh. Also, left-wingers are equally capable of doing evil things.
But if you support segregation, nationalism, racial superiority etc you are supporting social stratification, which is what the right-wing advocates for or allows. The Nazis were particularly extreme in this regard, as they actively attempted to exterminate undesirable minorities.
This does not translate to all right-wingers being evil.
Left wing means you promote equality and egalitarianism over other considerations. Communists, anarchists, social democrats, some liberals etc are left wing. Right wing means you support hierarchies and inequalities, or see them as unavoidable. Conservatives, monarchists, fascists, propertarians/libertarians etc are right-wing.
Being right-wing doesn't make you racist, and being left wing doesn't make you support welfare. So on and so forth.
We shouldn't take this conversation beyond this point as it is OT.
I disagree wrt it being off topic. If you genuinely group political entities in such a confusing manner then it's going to be nearly impossible for us to have a conversation about collectivism and individualism in stellaris, because your axis is orthogonal to what I understand the collectivist - individualist axis to be.
The first thing that needs to be understood is that as I understand them "left wing" and "right wing" don't have any bearing on personal social freedom, only on economic freedom (left being economic state power; more regulation, economic support + welfare, taxes to support those things etc., while right wing being economic popular power, supporting entrepreneurship, economic independence etc.) with a second, orthogonal axis (up and down) with authority vs. egalitarianism, that is state social power vs. popular social power.
In stellaris, both the state power options are bundled together (I think they should be re-separated into two different ethos axes, but in order to do it well there would need to be another axis added) and called collectivist (so things like "left" healthcare and welfare and "up" hierarchical government structures and slavery) and all the popular power options are bundled together as individualism.
Your idea of left and right wing seems to combine capitalism and similar ideologies with authoritarianism (so state social power and popular economic power) and socialism and similar ideologies with egalitarianism (so state economic power with individual social power).
What I mean by confusing then is this: when they collapsed the two dimensions into one ethic axis for stellaris, they made it so that all the state power options were one pole and all the popular power options were the other pole. This is thematically self consistent and, while I would prefer it if the left both dimensions as separate axes, works ok given the xenophobe, spiritualist and militarist axes are separate. In your collapsing of the 2d space to a 1D approximation, however, you seem to have linked some state power options with other popular power options and called them one pole. Which you can see is confusing.