Based on worldometers.info stats (compiled from Johns Hopkins and WHO data, and cited by Floyd in an earlier post), your statement that Denmark in a lockdown is doing as bad as Sweden in non-lockdown is wrong. Your next statement that Sweden a week ago had a 3.82% mortality rate is, well I won't say wrong, I prefer to say it's a lie.
As of April 13 -
Sweden: population 10.099 million (#91 in the world), 10,948 cases (19th), 919 deaths (14th), 91 deaths per million pop. (12th), and a mortality rate of 8.4% (deaths/total cases)
Denmark: population 5.792 million (#115 in the world), 6,318 cases (31st), 285 deaths (26th), 41 deaths per million pop. (20th), and a mortality rate of 4.5% (deaths/total cases)
Finland: population 5.540 million (#116 in the world), 3,064 cases (46th), 59 deaths (52nd), 11 deaths per million pop. (48th), and a mortality rate of 1.9% (deaths/total cases)
Norway: population 5.421 million (#119 in the world), 6,551 cases (29th), 134 deaths (34th), 25 deaths per million pop. (27th), and a mortality rate of 2.0% (deaths/total cases)
One week ago, Sweden had 477 deaths and 7,206 cases, for a mortality rate of 6.6%
Helps your argument if you don't make stuff up to back your hypothesis.