[ArrogantBustard]

Wikipedia (hah, hah) lists 11 distinct Presbyterian denominations within these United States.

Of these, the PC-USA is by far the largest with over 2 million (claimed) members in 10,657 congregations. PC of America (since you mention it) claims 346,408 members in 1740 congregations.

This decision affects almost an order of magnitude more people than anything the PCA chooses to do.

This is a HUGE crime of leading people astray.

[AnAmericanMother]

I count nine. See chart from Presbyterian Historical Society of Philadelphia:

If you count all that have ever existed, it's more like thirty. And that's just in the USA.