>>12493262the evolutionary purpose of anxiety is to encourage us to act to mitigate its source
if there's a predator you run away from it or fight it
if your water source is drying up you find a new one
the problem is that with humans' advanced brains and modern communications we are aware of threats which we have very little or no means of mitigating, such as the admittedly remote possibility of superpowers going into nuclear war at any moment
what you're advocating is stoicism and it's not new, but it requires consciously overriding your natural emotional reactions until it becomes habit, which is much easier said than done
you also need the wisdom to know the difference between justified and unjustified anxiety
people have differing degrees of emotional reaction, differing degrees of intelligence, differing degrees of pessimism/optimism
saying that those who suffer from anxiety are just mentally weak is overly reductive