I held the same negative opinion, until about 2018. Then I thought "enough is enough" and started contributing in my area. This in the hope and expectation that other area's will have volunteers working who started out with the same emotion in a somewhat catalysing effect (is that a word?). Now I am quite proud of maintaining shops and bars in my city, at least I think I am the person who updates those the most :)
Almost everything is manual unless an import for an area is happening. Imports require a bunch of documentation and notifications before the data gets pulled in. The data is typically for building and addresses from the government.
Adding together OSM’s rules are stacked against imports, the vocal anti import contingent and specialized software knowledge needed means that few imports happen.