Conclusion
Later colonies were built throughout the West, especially in the Plains and Front Range area of Colorado. While these communities still focused on morality, individual equality, abolitionism, temperance, etc., they did not restrict the diet of their citizens to a meatless existence. It is hard to challenge the meat eating majority culture, and many of these idealists came to realize this. Many proponents of the diet abandoned it for the convenience and tradition of meat eating.
Regardless of these obstacles to a diet, each of the men and women thinkers involved in the movement created unique strands of moral liberalism that outlasted the vegetarianism they held most dear. This video describes precisely why these ideas failed.
The rest of Louisa May Alcott's quote from the Introduction supports this feeling:
"The world was not ready for Utopia yet, and those who attempted to found it only got laughed at for their pains.”