Is the Dream for a betwe tomorrow in America gone?

So today in class after finishing Death of a Salesman we took a quiz and the last question was " Do YOU believe the American Dream is still attainable?" , and one thing and one thing only was running through my mind at that moment. It was a quote about dreams it goes like this " Dreams saves us . Dreams lift us up and transform us . And on my soul, I swear until my dream of a world where dignity ,honor , and justice becomes the reality we all share , I'll never stop fighting . Ever." ( Superman btw) .Even if he is a fictional character, this doesn't make any less of his statement untrue and I genuinely thought that yes things are bad now and have been for a while , but dreams reminds us to let hope love and to never give up on the future not just for ourselves bur for those who come after us . But after class, almost everyone I met has said they don't believe in this America we won't ever ever experience happiness through hard work(or just had no clue what it is ) , and I'm kinda sad that I'm the outlier and seeing everyone around me , just give up for tomorrow. Am I just naive for believing that I can make my life better as I grow older and at least for a small time indulge in happiness, and is just ignoring everything going on with sexuality, race , religion, etc ?Mom , Dad help 😭