Everytime someone posts the correct fact that average lifespan has drastically increased in the past century someone will wrongly claim that it is only because we got better at lowering child morbidity. They might even link to the garbage BBC article that only looks at data for rich privileged people who did indeed live long lives centuries ago. However the rich and privileged of old times were not representative of the general population.

Why do people so aggressively deny that things have been getting better in the past 100 years?