In other news, the PCUSA says Jesus is a “nice guy”, but wouldn’t go so far as to worship him. /s
You actually aren't far off. In 1973-74, the Presbyterian Church in America (PCA) was formed after breaking away from this PC-USA heretical group... and the deity of Jesus Christ was one of the issues leading to that split.
So as to the question "who's left?" The PCA still stands, along with the OPC (Orthodox Presbyterian Church) and a few others. We in the PCA have continued to accept breakaway congregations from the PCUSA as they reach their own levels of intolerance with their national 'leadership.'