Being heavily influenced by Marxism, Egbuna stressed the importance of an international struggle against capitalism, as a part of the global struggle against racial oppression. In a speech from 1967 at Trafalgar Square, London, Egbuna stated: "Black Power means simply that the black of this world are to liquidate capitalist oppression of black people wherever it exists by any means necessary". On 10 November 1967 Egbuna launched the Black Power Manifesto, published by the Universal Coloured People's Association. As spokesperson for the group, he claimed they had recruited 778 members in London during the previous seven weeks. In 1968 Egbuna published Black Power or Death. Egbuna also saw the socialist and communist student movements of the 1960s as problematic to the Black Power Cause. Although ideologically rooted in a similar Marxistintellectual tradition, he saw the student organisations as "socialist snobs" who decree from "the premise that only they have read and can understand Marx". This intellectual snobbery was, according to Egbuna, "doing a great harm to the cause they claim to be upholding" by ignoring race as a key reason for oppression of black workers:
Nobody in his right mind disputes that the fact that the White worker is a prey to capitalist exploitation, as well as the Black Worker. But equally indisputable is the fact that the White worker is exploited only because he is a worker, not because he is white, while in contrast, the Black Worker is oppressed, not only because he is a worker, but also because he is Black.
During the 1960s, many sympathisers of Black Power left their socialist and communist student organisations and subsequently started their own Marxist-orientated Black Power organisations, such as Black Socialist Alliance.
Controversy
As a consequence of the Race Relations Act 1965, incitement of racial violence had become explicitly illegal in the United Kingdom. Several members of Egbuna's UCPA were fined under this act. Perhaps most noticeable was Roy Sawh, who in a speech 1968 at Speaker's Corner in London's Hyde Park urged "coloured nurses to give wrong injections to patients, coloured bus crews not to take the fare of black people and Indian restaurant owners to 'put something in the curry'." Egbuna himself was later that year sentenced to prison accused of threatening to kill police and certain politicians.