""Because they're inextricably entwined. They don't "clearly differ".

Not at all- a check on more recent surveys show fewer and fewer Christian folks attend church on a regular- or even any basis, and choose their own course on life decisions, versus that dictated by an organized religion (Joe O has discussed this in detail many times, regarding the RCs).

"People dont worship alone, do they?"

That assumption, dressed up in a question, leads one to assume all Christian folks have a need to "worship" anything at all- likely an error in todays world? An increasing number of folks who say they live in a God, but do not attend a church would lead one to a clear answer. The question reminds me of the old song lyrics, "living in the past, is not living at all".