Ask Lemmygrad

This doesn't really answer my concerns and I think looking at more continental climates with summers and winters, further away from the equator is looking at a very narrow amount of data. Countries closer to the equator will not see these benefits from a warmer climate. A few years ago, Pakistan saw a devastating weather in the summer, with scorching temps above 45C as well as very high relative humidity (far above what tropical climates usually see), effectively turning the air into an oven.

Mind you, climate change is not solely about warming temps; the biggest part of it is it makes the weather simply unpredictable; farmers can't determine what they should plant anymore and when. Canada right now is having a cold snap, while Europe is seeing summer temperatures. We don't know what summer will look like in the future, one year it could be unbearably dry and droughty (2022) while in other years, it can be cold and rainy (2019). This leads to droughts one year, and floods the next. Climate change is the reason there was a cold snap north of the equator in January, the polar vortex could not be contained and spilled down south due to changing wind patterns.

Certainly people living in colder climates will be happy that it gets a bit warmer. People living in scorching heat right now will not.

That first study you linked about the Medieval Warm Period was written by just one guy (wonder why he couldn't get anyone else to co-sign his paper) and they're basically climate change deniers, not "we shouldn't be alarmists"-ers. This makes me wonder why exactly you would point to these fringe scientists, who run against almost the entire body of science, as trustworthy sources if you're not a climate change denier yourself. I don't have time to look deeply into Easterbrook right now, but I found this:

Easterbrook is a regular speaker at the Heartland Institute‘s International Conference on Climate Change. The Heartland Institute and its conference sponsors have collectively received millions of dollars in funding from the fossil fuel industry.5 (https://www.desmog.com/don-easterbrook/)

All climate change deniers are sponsored by the fossil fuel industry, if you follow the money back up enough, you'll find they all have an agenda.