If you honestly think that CO2 is the one and only cause of climate, ignoring solar cycles, and other effects, and furthermore, if you believe with certainty, that the CO2 cycle is phase shifted ahead in time, compared to temperature, when it's just as likely that it's lagging, than you're right, we really have no point in talking.

Also based on your response, I think we now know what "other climate measurements" you were referring to.