As it is, the changes that are happening now are far faster than any other changes in the climate humanity has faced, and that is what makes them dangerous.
While this may be true (and is probably true from recorded history data), it doesn't say anything about how fast they are happening compared with the last time the Planet turned extremely hot or extremely cold. It also doesn't consider the vast amount of unrecorded human history (from a climate/temperature point of view). For all we know, this is the Planet's normal climate trajectory, we just have such a small segment of data to look at, we can't see the forest from the trees.
Said another way, we are using an ridiculously small fraction of a percent of the Earth's climate data and using that to extrapolate (in both directions) when, in all reality, all of our data could represent a short anomaly period that over a more significant time period (based on Earth's time-scale) will normalize itself right out.