By 1921, García, her brother Armando, Víctor M. Angulo, Manuel Cálix Herrera, and Carlos Gómez were recruited by
Juan Pablo Wainwright as Marxist labor organizers. He led them in organizing strikes in Northern Honduras against the banana producing companies and railroads for higher wages and benefits. Under the umbrella organization, Honduran Workers' Federation (), the various members created member labor unions. García headed the union
Redención, which was a member of FOH. In 1923, she founded the
Society of Feminist Culture (, which was a socialist women's group aimed at organizing working women. It was the first feminist group created in Honduras and worked in resistance to the government. The group founded night schools for women which gave forums to teach women about their rights and equality. The organization also published a newsletter to discuss topics about women's issues and emancipation. García continued her organizing activities, distributing pamphlets, but conflicts between the FOH and the
Communist Party of Honduras forced the dissolution of the FOH in 1929. In that year, she and her brother participated with Cálix to organize a congress of workers and peasant congress at the port of
Tela. Held on 29 May, the congress sparked the creation of the Honduran Trade Union Federation () which initially organized dock and railroad workers and later organized the
United Fruit Company workers. By 1930, led by Wainright, the FSH were initiating strikes against the
Standard Fruit Company and United Fruit. Wainright was singled out as an instigator and was captured and executed in 1932. Later that same year, the FSH brought another strike against Standard Fruit and the Truxillo Railroad Company. They supported Cálix in a bid for the presidency, but when the dictator,
Tiburcio Carías Andino won the
1932 election, he outlawed the communist party. García continued her organization and strike activities, having to operate from clandestine locations until 1944. She led demonstrations in front of the presidential residence in May and June calling for the release of political prisoners. In July of that year, mass protests were held against the government of Carías and García was arrested an imprisoned. She and her brother were expelled and returned to El Salvador. She joined the National Union of Workers (), which was affiliated with the illegal
Communist Party of El Salvador and continued her organizing efforts. Joining Women Committee, she participated in the presidential campaign for Arturo Romero, who was one of the candidates to replace the temporary president
Andrés Ignacio Menéndez. When the
coup d'etat by
Osmín Aguirre y Salinas ended the elections in October 1944, García fled to Guatemala. In Guatemala, García organized the Salvadoran Liberation Committee to support exiles from El Salvador and rebels fighting against Aguirre. Her son, Tómas, though a third-year medical student, joined the resistance and was killed in a battle in December 1944 when a group of militants overtook
Ahuachapán in an attempt to overthrow the Aguirre regime. In 1945, she became one of the founders of the Confederation of Workers of Guatemala and organized a school
Claridad (Clarity) to train workers, as she had done earlier in Honduras. Opposition to trade unions by conservative factors in the society led to García's expulsion by Guatemalan president
Juan José Arévalo in February 1946. She and her husband fled to
Mexico City and continued to work for the resistance movement against Carias' dictatorship. She took employment with the
Secretariat of Public Education, where she worked from 1946 to 1979. She also remained active in trade unions and leftist political movements, publishing articles in various newspapers, such as
El Popular and the bi-monthly journal
Pagenias de Ayer y de Hoy. García published her memoirs,
Páginas de lucha revolucionaria en Centroamérica (Pages from the revolutionary fight in Central America) in 1971 and
En las trincheras de a lucha por el socialismo (In the trenches of the fight for Socialism) in 1975. In 1977, she was invited to attend a tribute held in her honor at the
National Autonomous University of Honduras. She attended the event, which represented the first time she had returned to Central America in over three decades. After the tribute, a collective feminist group called Graciela Amaya García (GAG) was founded by a group of women at the university to honor and recognize García's contribution to women's rights and education in the country. Their goal was to educate their members on feminist ideals. ==Death and legacy==