Absolutely correct, it has been MUCH warmer in the past, but the change was not so rapid and dont you think it is slightly suspicious that right at the moment we largely increased our CO2 and other GHG emmisions, the temps shot up? The CO2 conc. was also higher in the past, but the change wasnt so fast.
And we are not talking about warming, also the number of extreme events etc. it is all interconnected (butterfly effect). It is not just about the averages.