What are the _total deaths_? What is the total mortality rate?
You can also compare with other neighbors and Europe: https://ourworldindata.org/explorers/coronavirus-data-explor...
Is that a pragmatic-enough reason to significantly deteriorate the economy and mental health of the enormous majority of people?
Sweden had no advantage over its neighbors on the economic outcome, and you'd need to cite real data in order to make an argument for mental health. Naïvely assuming a causal relationship with quarantine measures for both without considering positive effects of better health outcomes (and other factors) is fallacious.