There’s a fundamental flaw in your statistics. We know that the vast majority of infected have few or no symptoms. You write that there were 162,687 cases on March 15. Really? You really believe we have such a precise world wide count of everyone exposed to this virus? If so, that’s ridiculous.
You also wrote that no one is immune to this virus. Nearly 7 billion people on this planet and you know for a fact none are immune? Again, that’s a ridiculous assertion. If 80% are essentially asymptomatic or have very mild symptoms—another reported statistic we can’t really know for sure—that sounds like pretty good immunity to me.
Now I’m not saying this virus is harmless. What I am saying is there are all sorts of unknowns at this point. I think this is what Ron Paul was pointing out. People’s opinions are not scientific fact.
There are lots of unknowns, but the numbers are high enough now that scientists can narrow it down to a range (seeing 0.8%-3%). My simple fatality rate is fatalities/known cases...as you said that cases # is a big variable (denominator), but let’s use South Korea since it is one of the most tested countries. (USA one of the least). 75 fatalities/8320 cases = 0.9% fatality rate, about 8x regular flu...in line with everything I read & hear on TV from the experts.
More in-depth scientific analysis on the topic:
https://medium.com/@tomaspueyo/coronavirus-act-today-or-people-will-die-f4d3d9cd99ca