"Let's all become Isaac Newton this month."
Those comments come across pretty tone deaf to me. I imagine the person who wrote it doesn't have any young children and enjoys a relatively high degree of privilege.
A whole lot of millennials don't have children and won't anytime soon. Some of us don't have time, money, savings, security, or desire to do so. Assuming kids is what's tone deaf.
Like I said, people die every day. More are going to die during April. It sucks. Make the most of a bad situation. As an individual, nothing you do can move the needle (besides the social distancing and other guidance), so look inward.
There are approximately 40 million US citizens living in poverty. Try going to their houses and telling them that Isaac Newton invented calculus during the plague, so they should look at this as an opportunity for them to learn a foreign language or program an app. You might want to plan an escape route before you do so, though.