You slapping your own definition on Destiny as a solo game when Bungie has always advertised it as a multiplayer game means that you obstinately made a purchase and are now trying to act surprised about what you got. Bungie advertising one thing and delivering another is a fair complaint. Bungie advertising that there will be some content meant for teamwork and you getting mad that you can’t solo it is on you. Also Harbinger is definitely doable solo. And Prophecy, Shattered Throne, Pit of Heresy, etc.