The thing you seem to miss is that while this thing spins up our protection by isolation diminishes. Out of 8,000 we had ONE come in. How many will we have when the global burden is much higher? When it is a million will we get one hundred? Your calculations are static. The situation is dynamic.
Did you miss where I said “sure to increase” twice? We are going to be screwed even with 150 a day and 1 in 1000 infected. That’s one new case a week. With more than that there will be chaos.