It is forgetting conveniently that the MWP (medieval warm period) was 2C warmer than today, the 1st century even warmer than that (Romans growing wine grapes on the Scottish border)
Is probably true. Though back then, there weren't hundreds of millions of people noticing their homes being threatened by the effects attributed to climate change, and demanding that the government take action to reduce those effects. Whether the government, or society
can affect change to our climate is another question, but right now, it's public perception.
Like it or not, gas guzzlers, or machines perceived as such, will become environmental pariahs.