screenshot of Google trend for the phrase "vote blue no matter who" from 01/01/2016 to 12/31/2020, clearly showing that the phrase peaked in early 2020. Source https://trends.google.com/explore?q=%22vote%20blue%20no%20matter%20who%22&date=2016-01-01%202020-12-31&geo=US
"Vote blue no matter who" was a 2020 slogan, not a 2016 one ("everyone needs to get on board" was more a Republican thing that year). That's why I said earlier that I don't think you are remembering 2016 "as if it were yesterday."