Lol.. That's the normal temperature during summer in India.
People in India are used to 100F+ weather, but would die quickly in -40F/C weather. The same thing happens in reverse.
https://phys.org/news/2019-06-india-heatwave-temperatures-ce...
The problem isn´t just that humans can´t breathe underwater.
Of course weather is complicated and nonuniform, but this does give a sense of what areas of the world might no longer be inhabitable due to climate change. The worst part is that several of our biggest cities are in climates that are already quite warm on average. A lot of people live in Southeast Asia.
As you said, India is way more fucked Than Europe. 50± c is more than enough to kill people and seriously disrupt economies