Nonsense. The "it's open source, fix it yourself" argument only holds if your target audience is developers.
Ubuntu is intended to (also) target non-powerusers. They intend to be a competitor to other "normal people" OSes such as OSX and Windows. The fact that they give it away for free is entirely Canonical's own choice, and it does not magically take away users' right to criticize them.
Canonical puts a product in the market with claims to certain qualities, such as openness but also ease of use. The OP feels that some of these qualities have disappeared, and chooses a different OS for that reason. How is that obnoxious?