1918-1920 Spanish flu killed estimated 50 million In a world population of 1.8 billion Makes it a .027% killer
In a time when there were no efficient international travel except by boat.
Zero draconian measures
COVID has killed 2,440,000 In a world population is 7,800,000,000 Makes it a .0003% of the population killer
Even though we have international travel exponentially higher than in 1920 COVID kills at .01% of the Spanish flu per capita yet we destroyed our way of life , our economy, our kids future
Just two comments; 1) people DID wear masks during the Spanish Flu, for better or for worse, and they did practice social distancing. 2) The best way to evaluate deaths from Covid is to focus on 'excess deaths'. Statistically, every year, a certain number of people die of all manner of causes. Taken in total, the number is pretty consistent and we can compare that number (all deaths from all causes) for 2020 to the average over the past 10 years.
This page gives a good overview - https://ourworldindata.org/excess-mortality-covid . You can see that England and Spain, for example, had a terrific number of excess deaths in March 2020. Germany and Norway, not so much. There's an 'add country' button which allows you to add the US.