There's a 0% chance any ally would help out in a civil war vs China situation. Remember - "civil war" will easily be their excuse to not do anything + the whole "well, 1 side is every -ist word in existence!" But China wouldn't bother getting involved in a civil war anyways. Directly I mean. No need. They'll continue doing what they've been doing for 20 years now which is continuing to grab a hold of Africa, Asia, and Europe.
There's a 0% chance any ally would help out in a civil war vs China situation. Remember - "civil war" will easily be their excuse to not do anything + the whole "well, 1 side is every -ist word in existence!" But China wouldn't bother getting involved in a civil war anyways. Directly I mean. No need. They'll continue doing what they've been doing for 20 years now which is continuing to grab a hold of Africa, Asia, and Europe.