Central Europe looks like it would have been lovely!

https://en.wikipedia.org/wiki/Last_Interglacial#/media/File:...

The linked picture is just an artist's interpretation, not a photo, and I assume you were mostly joking too. I think we agree that it's not a good idea to hurry in warming the planet.

I don't think the local plants and animals there match what used to be typical around the world prior to our current ice age.

A steamy, stuffy jungle without airconditiong might be a more appropriate example.