Lolita Lebrón called him "Puerto Rico's most visionary leader"[56] and nationalists consider him "one of the island's greatest patriots of the 20th century."[57] In describing his legacy, social scientist Juan Manuel Carrión wrote that "Albizu still represents a forceful challenge to the very fabric of [Puerto Rico's] colonial political order."[58] His followers state that Albizu's political and military actions served as a primer for positive change in Puerto Rico, including the improvement of labor conditions for peasants and workers, a more accurate assessment of the colonial relationship between Puerto Rico and the United States, and an awareness by the political establishment in Washington, D.C. of this colonial relationship.[59] Supporters state that the legacy is that of an exemplary sacrifice for the building of the Puerto Rican nation ... a legacy of resistance to colonial rule.[60] His critics say that he "failed to attract and offer concrete solutions to the struggling poor and working class people and thus was unable to spread the revolution to the masses."[61]