Why flattening of the curve through a Locdown will hurt us even more???

[desan]

Hard to predict? It is unknown either way. So a statement on either end is baseless without data.
Only thing which can be predicted is that even if there is a seasonal effect then its impact will be comparably low. This is a new virus. and its seasonal effect cannot be compared to the old viruses, to which much of population is already immunized.
Also it is not exactly known that why these viruses show seasonal and regional variations. There are several theories ( a mix of structural, social and environmental reasons) but not the exact reasons .

Herd immunity will probably play a big role in putting a break to this runaway train, especially in 3rd world countries...