So humans lost the fur to outcompete other animals through superior evaporative cooling. No big deal because we're all in Africa.

Then we moved north and did not get enough sunlight anymore for metabolic processes. Easy solution, we just turn white.

Now we are both freezing and getting sunburnt at the same time. Evolution sucks, we should have kept the fur.

> Now we are both freezing and getting sunburnt at the same time.

Also, things are changing way faster than adaptation could possibly happen in evolutionary time scales.

> Evolution sucks, we should have kept the fur.

Some say, we shouldn't have left the trees, even.