For many people their messenger has replaced the photo album. Its where you have all your life memories such as baby photos, first school day, etc. Forcing those to be deleted just sounds dystopian.
Companies have taught us to do otherwise for their profit, don’t forget to back up that.
Even if I would agree with you that people keep too many digital pictures, if someone wants to do it I would also defend their right, because I do not think it is that negative that is worth fighting against.
PS: to put it to the extreme shouldn't we spend any time on hacker news "but spent more time with their families, sharing stories and souvenirs."?...