I don't see the Trinity in your way and think that a version is supported by an interpretation in scripture and don't see the negative points that you mention.
What I feel should be important to Christians is how they treat fellow human beings rather than doctrines related to worship and the Trinity and suggest that God sees it in the same way from what I think that Jesus is said to have conveyed.
Never mind Christians do what Christians do including squabbling over the Trinity and the correct way to comprehend God and worship, and what I say as an atheist is irrelevant.