Has God sourced all of these churches?
No. For example, the Unitarian church.
Are all "traditional" Christian Churches the same to God in your opinion?
First of all, please specify if you are referring to "local churches" or denominational church bodies. Beyond that, ya gotta admit this is a fairly vague question. Finally, I kind always go to Scripture, but I can't always discern alone the mind of Christ as to how He evaluates each church.
If you look at Revelation 2 and Rev. 3, He had very specific commendations and encouragments, and very specific critiques and correctives for each local church.
I believe God evaluates each local church distinctly. And I base that conclusion on Rev. 2 and Rev. 3.
No, it's not a vague question. You brought up the first vision and what God told Joseph Smith. I'm asking you the same question. Do you feel that all Churches are created equal and provide "one Lord, one faith and one baptism? Are they all preaching the same gospel of Jesus Christ?