In normal election years, I might agree with your list. However, this is not a "normal" election year. I envision three issues topping the campaign; coronavirus, racial relations, and restarting the economy. Sadly, I do not believe AGW will make the podium during the debates, except possibly to accomplish your #2 bullet.
I believe that young voters are more concerned with their schooling, in wake of the virus, and the loss of potential jobs and internships in the future.
While it is certainly an issue for the future, placing too much emphasis on this election cycle could be political suicide for the Democratic party. The last thing the party wants is to be viewed as out of touch with the wants of the people.