Look at all of the people who still go to clubs and stuff packed into a dancefloor with lots of others. Of course we see that, but a lot of people, especially in America, have no regards for their neighbors. And not all of them are Trump supporters. But rhetoric like this appeals to those people, they want "positive vibes only" and don't want to be reminded of the virus.
I'm sure that an introvert, full of negative energy (that constantly worries about a Biden +20 lead being good for Trump) person like yourself, certainly has his finger on the pulse on what extroverted, "positive vibes" young americans feel. Tell us more.