Earlier quoted context omitted.
It's telling that you only cited examples of scientific subjects. As the other commenter noted, articles of consequence for public debate (politics) are generally terrible and there are lots of "editors" who are working for deep state cut-outs doing nothing but trying to damage the reputation of intellectuals who are a danger to the status quo.
Yes I agree, it is telling. It is similarly telling that conservative wikis have barely any articles on core topics like engineering, mathematics, philosophy, and the sciences. These intellectuals you're describing oddly don't seem to have much interest in things most people would deem intellectual... For example, compare the Wikipedia article on Leonhard Euler with that of conservapedia... It's so absurd I had to do…
It's not really telling, it's just a path-dependent artifact about how those projects are positioned in the "ecosystem." When you have a "mainstream" site that's a little biased against some ideology, it monopolizes the general-interest/popular users. A competitor that sets itself to answer that bias will only be able to attract a user base that's highly skewed towards very ideological users who found that bias intolerable, because the general interest users aren't motivated to leave for it.
If Wikipedia had a subtle conservative bias, a hypothetical "Leftopedia" would be similarly full of liberal axe-grinding and weak on general-interest topics.