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I live next to a gathering point of leftist/antifa groups in Germany, and given the fact they are "state sponsered" they happen to get a lot of needlessly violent police response. I'd imagine a state which "sponsored" a group would protect them from the state's executive. Also the CCC publishes consistently statements that oppose the current German governments plans regarding internet and surveilance. What is the purpose of a state sponsoring a group that ridicules their badly thought out policies on a regular basis? If I were a state I would not sponsor people that constantly show my policies to be of farcially bad quality, but hey, maybe this makes sense in your world.
Next we could go for the term "terrorist organization". In Germany we have a Verfassungsschutzbericht ("Report of the Federal Office for the Protection of the Constitution") which lists all the violent or terrorist acts on a yearly basis. The Federal Office for the Protection of the Constitution is and has been known to be overyly critical of left wing organizations (so much for "state sponsored" antifa) while being blind to right wing violence like a literal murder series (NSU complex), also because the early officers working at that organization had Nazi roots. STILL the report of that organization shows that right wing terrorism is magnitudes more common and deadly than any left wing violence. So if Antifa is a terrorist group, they are not very good at terrorism, because they don't seem to have a lot of impact in the real physical world that anybody can measure. Leftist violence is mostly against property or rightwing opponents. Right wing violence is against intellectuals, writers, journalists, migrants, politicians and of course leftists. Or you know, maybe the whole terrorism label is a bit far fetched for what I perceived as a more or less disorganized mess of leftist splintergroups full of edgy teens.
So we have a wrong claim of state sponsorship and a wrong claim of "terrorism", which mean I would not be too confident in the third point you are making there.
The CCC certainly leans left. So what? A lot of educational elite groups in Central Europe do. That is quite normal. If you were to ask the CCC they'd probably argue that in the US hackers are surprisingly comfy to be that close to the intelligence community and the state (which is precisely what you accuse the CCC of by being "state sponsored").