We get record heatwaves till the ocean currents change and we lose the warm water coming in. Then we'll get snow in July and complain about -40 in the winters instead of +40 in the summers.
Climate change sucks, but 34c is hardly anything to get excited about. People in the US frequently live in temps like that as the norm. Now regular 50c would be concerning.
We don't care about regular US temperature. Climate change is all about constant change, that brings damage to people, cities and agirculyures that developed 5°C colder. Every year is the hottest summer ever, all of this is not normal and is pretty worrying.
If your climate never got up to 29, it does. It's the same as people and infrastructure freaking out in Texas because they had a couple of cold years. They got some weeks under -10°C and electricity got cut-off, water pipe burst and people died. Are people dying in Norway when you get to -10°C? Absolutely not.
34°C is at best 3 degrees away from regular body temperature which, and this might come as a shock to you, means that the body's built-in ability to regulate its temperature is already severely degraded. That is also not taking into account that, as other commenters mentioned, the temperatures in the sun can easily reach 40°C, which also BTW, is when cell lifespans in the body start plummeting.
All that to say: the mortality rates during summer aligning with the temperature disagree with your take.
I'll take -30 over 30 any day of the week and that is also the exact same thing you'll hear from me in winter. I can warm up relatively easily when it's cold but there is fuck all I can do about 34°C in the shade (aside from staying indoors all day)
I used to live in a climate with both -30 and +30 and lemme tell you the latter is a lot better. When it's cold you can't really do anything, it's just fucking cold, especially in Europe where housing feels like it's made of straw and constantly let's everything through, but when it's warm it's very easy to cool down by just not wearing a jacket, foregoing the jumper for the tank top etc.
I don't know where those numbers where pulled from, but that is for sure not the maximum temperature reached.
Where you see that wonderful 27 in Italy the daily maximum temperature is already around 40 right now.