> I ask honestly: why should it be easy to participate?

Because the alternative is massive systemic bias.

This issue has been discussed to death and I won't argue anything here, but the point is that having a thick coat of process encourages a _certain kind_ of editor to participate in Wikipedia. Thus, proponents claim, the largest reference work on the internet is biased, in a very nonobvious way.

This wouldn't be an issue if Wikipedia was some niche forum where "facts" are taken for granted to be opinions. But for (what I suspect is) the majority of people these days, Wikipedia is the de facto source of truth. Therein the problem lies.