Final answer:
The claim that Diego Rivera enjoyed success because he kept his political beliefs private is false. He was openly political in his artwork, aligning with Marxism and Mexican revolutionary politics, which was also a defining characteristic of the Mexican Mural Movement and his life with Frida Kahlo.
Step-by-step explanation:
The success of Diego Rivera was not due to him keeping his political beliefs to himself; in fact, the opposite is true. The statement that Rivera enjoyed tremendous success because he kept his political beliefs to himself is False.
Rivera openly expressed his political views through his artwork, particularly his large-scale murals that depicted Mexico's history, struggles, the working class, and his commitment to Marxism and revolutionary ideologies. He was not one to shy away from controversy in his work, even though his political stance sometimes provoked public debate and at times put his commissions at risk. Such openness about his political beliefs was closely aligned with the Mexican Mural Movement, which Rivera played a crucial part in, influencing public and artistic communities in Mexico and the United States.
Furthermore, Diego Rivera's relationship with Frida Kahlo was underlined by their shared passion for political and cultural nationalism in Mexico. Their art collectively reflected their deep engagement with Mexican identity and politics. Rivera's passion for art and revolutionary politics was a defining trait of his life and career; it was evident in his art and public interactions, leaving an indelible mark on Mexican culture and the world of art.