From QED’s wikipedia link on Confucianism:
“It might be considered a state religion of some East Asian countries, because of governmental promotion of Confucian values.”
Under, “The neutrality of this article is disputed.”:
“It is therefore debatable whether Confucianism should be called a religion.”
Then again:
"Generally speaking, Confucianism is not considered a religion by Chinese or other East Asian people. "
Britannica, via answers.com:
"Though not organized as a religion, it has deeply influenced East Asian spiritual and political life in a comparable manner. "
Evidence is mixed, bul I’ll call that one for QED.
Taoism, from answers.com
The dictionary entry calls it “A principal philosophy and system of religion of China…”
The Buddhism dictionary calls it, "One of the indigenous religions of China… "
Colombia Encyclopedia: “Taoism (däu’ĭzəm) , refers both to a Chinese system of thought and to one of the four major religions of China (with Confucianism, Buddhism, and Chinese popular religion).”
Ok, we’re 1-1 now.
The remainder of your points were offered without substantiation. Justice Black’s commentary in Torcaso v. Watkins seems to imbue these groups under a relgious umbrella:“Among religions in this country which do not teach what would generally be considered a belief in the existence of God are Buddhism, Taoism, Ethical Culture, Secular Humanism, and others.”. Within tax law, humanistic groups have received religious deductions: see eg Fellowship of Humanity v. County of Alameda and Washington Ethical Society v. District of Columbia. Then again, there’s Peloza v. Capistrano School District, stating that such groups may not be religions for all first amendment purposes. Of course, I’m talking out of my posterior here: all of this is from wikipedia.
To my list I’ll add the religions, The First Church of Atheism, and The Universal Life Church. I figure any operation that calls itself a church is probably a religion, absent explicit statement to the contrary. See religious humanism for further discussion.
More seriously though, we might just want to use the word Theism to depict religions that maintain a belief in one or more gods.