"dreams crumbled" is a correct and usable phrase in written English.
You can use this phrase when talking about something that was originally positive or hopeful but failed to come to fruition. For example, "After months of hard work, his dreams of winning the race crumbled when he broke his ankle."
We can see her characters' dreams crumble.
Dream after dream has fallen apart in New York, a place where so many dreams crumble.
Penny and her friends found their dreams crumbling soon after graduation.
An ambitious musician whose dreams crumble before his eyes, Stig offers a fearsome artistic credo that could stand as Bergman's own: "I'll tell you the secret of real art.
The entire nation of Brazil was left in an emotional mess after four goals in six minutes saw their World Cup dreams crumble before them, and when Sami Khedira added a fifth, another record was set with an incredible peak of 580,166 tweets per minute to break the previous best of 388,985 set when Brazil knocked Chile out two weeks ago.
I can't be a young student in college with big dreams without those dreams crumbling under the lens of Islamophobic political rhetoric and media coverage.
He, too, was born into a noble family, rose to prominence in the ANC, got married and divorced, and watched his political dreams crumble and his own life hang in the balance when in 1962 he was sentenced to life in prison after leading a badly botched, non-violent revolutionary campaign.
"They are watching their hopes and dreams crumble as parents, teachers, caregivers and role models succumb to AIDS.
Many children are watching their hopes, futures and dreams crumble as the adults around them – their parents, their teachers, caregivers and role models – succumb to AIDS.
I am sad that the dream crumbled, that the reality was too difficult, that he is not here.
