Extending the curve doesn;t change much. If everyone that's going to get sick gets sick anyway, just over a longer period, deaths will remain pretty much the same.
On the contrary: the death rate can be greatly affected by adequate access to intensive care; in particular, ventilators.
How many times are you going to repeat that claim and ignore what is repeatedly being said in reply (backed by multiple medical/scientific sources): spreading the case load over more time increases the ability of medical facilities to keep up and saves many more lives,
reducing the death rate. China outside the original hot-zone of Hubei province has it down to about 1% — and with weeks of lock-downs, not months; South Korea maybe has it under 1% but the data so far is very fuzzy; in Italy instead it is about 4% or higher, maybe far higher, but hopefully the recent lock-downs will soon start showing benefits.
As I said to Slobodan, it is conceivable that you are right while the epidemiological research community as a whole is wrong, but I severely doubt it.