Fear seems like the go-to strategy when you have the weaker candidate. During the Obama elections, the only thing Republicans could do was try to scare people into voting for them, since they knew they couldn’t beat him. The strategy turns from focusing on the strength of your own candidate to focusing on the flaws of the opposing candidate. Democrats entire strategy at this point is maximizing fear of Trump. Not sure why it’s so hard for them to get rid of Biden and put up a real candidate, but it looks like a flaw in the nomination process.