Alcott was an idealist, a bit of a radical even among fellow radicals the Transcendentalists. Fruitlands members (of which there were few, other than the Alcott family) had to follow very strict rules: a vegan diet (even some vegetables were forbidden, including "dirty" ground-dwellers like potatoes and carrots), a ban (for a time) on the use of animal labor or animal products like wool, and the rigid work schedule of a farmer on land not good for crops.
The vision was to avoid the evils of the American economy — something Alcott worked against throughout his life. After Fruitlands failed, the Alcotts moved to Concord. When the family purchased a home they named The Hillside in Concord, Massachusetts in 1845, the patriarch of the family played no part in the purchase; as his wife said, he was "dissatisfied with the whole property arrangement" (i.e. he didn't believe people could really own land).
Bronson Alcott continued his idealism, finding several ways throughout his life to challenge systems of education, philosophy, religion, and economy. As a writer himself, his most well-known works were published in The Dial, a series called Orphic Sayings; most were considered incoherent at worst, a series of one-liners at best.
Possibly organization is no necessary function or mode of spiritual being. The time may come, in the endless career of the soul, when the facts of incarnation, birth, death, descent into matter and ascension from it, shall comprise no part of her history; when she herself shall survey this human life with emotions akin to those of the naturalist, on examining the relics of extinct races of beings; when mounds, sepulchres, monuments, epitaphs, shall serve but as memoirs of a past state of existence; a reminiscence of one metempsychosis of her life in time.
He lectured frequently to the end of his life. He died at the age of 88. His daughter Louisa May Alcott, by then a famous novelist, died two days later at the age of 55. Both were buried at Sleepy Hollow Cemetery in Concord.