The important numbers are CFR and R0 (R-naught*), not deaths compared to world population, when one is predicting the impact of an emergent disease. How deadly is it if contracted, and how easily and quickly does it spread?
SARS-1 had a much higher fatality rate, but a lower R0 than SARS-Cov-2. SARS-1 was spread via respiratory droplet, whereas SARS-Cov-2 was truly airborne (aerosolized), hence Covid’s higher R0. For some time, it was thought that, like SARS1, it was only spread via droplet, but as it turned out, not so. This is why social distancing was useless — although it could theoretically lessen the initial viral load in some cases, I suppose.
SARS1 was more easily contained. Partly because of quick response/quarantine. And it was easier to contain thanks to lower R0. And it mutated itself away at an astonishing rate. Thank goodness. Covid was already wildly out of control by the time the Chinese had to admit to the outbreak, so early containment as with SARS1 was out the window. And we all know the rest of the story.
*See: https://globalhealth.harvard.edu/understanding-predictions-what-is-r-naught/
PS: You do realize any old bum can edit Wikipedia, including you and me and AOC, right? But if you want to go by some Chinese guy’s outdated numbers, fine.
WIKI bad, WHO good, UM reporting on WHO even better, though estimations are estimations are estimations. Revised estimations, well that's another better than....
--- "How deadly is it if contracted, and how easily and quickly does it spread?"
Well, the numbers tell you that answer. SARS CoV and MERS were NOT quickly nor easily spread, with but about a thousand deaths worldwide. So your "important numbers" weren't important after all. Not in those cases.
--- "But if you want to go by some Chinese guy's outdated numbers, fine."
Generally I use Johns Hopkins and US gov census numbers, so I've simply chosen some different "old bums."
Just how many deaths came from SARS CoV1 and MERS worldwide? Choose any source you like. I will accept the number of deaths from your source.