Your meme is based on a hope, not any actual stats or evidence... right?
Your hope / assumption is that those who sat out in 2016, but in 2020 will get up off their asses and vote, will all vote for Biden. On what is this based?
Many who sat out in 2016 were republicans who now have Trump's record to judge, and a lot of them may vote Trump, particularly now that they see what a train wreck Joe Biden is.
I think it would be foolhardy for Democrats to assume anything in this election, just as it was in the last election, when they assumed their way to 2nd place.