Tbh, I think that the impact of solar cycles etc. is forgone conclusion; one would have to be playing a strange game indeed, not to countenance it.
Having said that, manmade CO2 is a wholly new phenomenon; it's nowhere to be found in the pre-human climatic record...So, I ask: What is the point - other than that of rhetoric - in attempting to use the aforementioned record in order to claim that manmade CO2 has no effect on climate?
Is there, anywhere in the record, an increase in GHGs broadly in line with what's going on, today?