According to the survey, it's 36% liberal, 30% libertarian, 27% socialist, 25% conservative....At worst that would be four different clusters; and any specific of them would be a minority.

Math. Conservatives are 3%.

Just 3 labels make up roughly 93%, and I'd say only two real clusters, as libertarian vs. socialist/liberal. I haven't noticed substantive debates here between liberals and socialists. It would be interesting to see, if someone can point some out.

Note the predominance of the Anglosphere - with the 4 top represented countries making up around 75% of the survey respondents, and those 4 countries being 4 of the top six in per capita terms.