Earlier quoted context omitted.
The insurgency was armed with Russian and Chinese equipment that was given to Iraq between 2003 and 2009. You can read about the Iraqi Insurgency for more information. But more generally, US, China, Russia have all been fighting/arming proxy wars over there for around 50 years.
They "use the equipment" and actual support are not the same. Did they arm ISIS directly or did the weapons end up there a different way? > But more generally, US, China, Russia have all been fighting/arming proxy wars over there for around 50 years. But supporting terrorist groups is not something Russia nor China does on this level.
Yes they supported terrorist groups. As did the US. No one is innocent. But the US has always supported democracy and civil rights. That includes civil rights activism deemed "terrorist" by China and Russia.
The West represents civil rights. That's just as fact. Ask yourself, are people enjoying civil rights in China or Russia living with a quality of life far below Western nations? Obviously not.