Why would the fatality rate be 2.5?
If you use an extremely generous accounting of the death rate by taking the number of people who have died with a positive test divided by the total number who have tested positive, the US has a death rate of about 0.03%... in reality the actual death rate is probably closer to 0.01% when you consider that ~80% of the infected show no symptoms and therefore have zero reason to get tested.
Calling the lockdown "unnecessary" is a huge understatement... the reality is that locking down a country over a new strain of the common cold is preposterous and ultimately there needs to be an investigation into the fearmongers who promoted all of this.