This tends to be the characterisation that middle-class liberals on SRS give of communists, and I'm not entirely sure why it's the case considering the fact that the large majority of communist uprisings throughout history were not led by white people and were certainly not suburban in character. Let's look at what a few prominent American PoC leaders have said on the issue.

We're going to fight racism not with racism, but we're going to fight with solidarity. We say we're not going to fight capitalism with black capitalism, but we're going to fight it with socialism.

-Fred Hampton

The only path of liberation for black people is that which leads toward complete and radical overthrow of the capitalist class.

-Angela Davis

We have two evils to fight, capitalism and racism. We must destroy both racism and capitalism.

-Huey Newton

This is the era of Mao Tse-Tung, the era of world revolution and the Afro-American's struggle for liberation is a part of an invincible world-wide movement. Chairman Mao was the first world leader to elevate our people's struggle to the fold of the world revolution.

-Robert F. Williams

Here, I am not a Negro but a human being for the first time in my life ... I walk in full human dignity.

-Paul Robeson [on visiting the USSR]

I am not a communist ... On the other hand, I ... believe ... that Karl Marx ... put his finger squarely upon our difficulties ...

-W.E.B. DuBois (he later joined the communist party at age 93)

You can’t have capitalism without racism

-Malcolm X

These are just a few quotes from American Civil Rights figures, I could probably find some good ones from other PoC leaders that are even more forceful... here's one from Mao.

The speedy development of the struggle of the American Negroes is a manifestation of sharpening class struggle and sharpening national struggle within the United States; it has been causing increasing anxiety among U.S. ruling circles. The Kennedy Administration is insidiously using dual tactics. On the one hand, it continues to connive at and take part in discrimination against Negroes and their persecution, and it even sends troops to suppress them. On the other hand, in the attempt to numb the fighting will of the Negro people and deceive the masses of the country, the Kennedy Administration is parading as an advocate of “the defence of human rights” and “the protection of the civil rights of Negroes,” calling upon the Negro people to exercise “restraint” and proposing the “civil rights legislation” to Congress. But more and more Negroes are seeing through these tactics of the Kennedy Administration. The fascist atrocities of the U.S. imperialists against the Negro people have exposed the true nature of so-called American democracy and freedom and revealed the inner link between the reactionary policies pursued by the U.S. Government at home and its policies of aggression abroad.

I call on the workers, peasants, revolutionary intellectuals, enlightened elements of the bourgeoisie and other enlightened persons of all colours in the world, whether white, black, yellow or brown, to unite to oppose the racial discrimination practised by U.S. imperialism and support the American Negroes in their struggle against racial discrimination. In the final analysis, national struggle is a matter of class struggle. Among the whites in the United States, it is only the reactionary ruling circles who oppress the Negro people. They can in no way represent the workers, farmers, revolutionary intellectuals and other enlightened persons who comprise the overwhelming majority of the white people. At present, it is the handful of imperialists headed by the United Slates, and their supporters, the reactionaries in different countries, who are oppressing, committing aggression against and menacing the overwhelming majority of the nations and peoples of the world. We are in the majority and they are in the minority. At most, they make up less than 10 per cent of the 3,000 million population of the world. I am firmly convinced that, with the support of more than 90 per cent of the people of the world, the American Negroes will be victorious in their just struggle. The evil system of colonialism and imperialism arose and throve with the enslavement of Negroes and the trade in Negroes, and it will surely come to its end with the complete emancipation of the black people.

I don't expect you to necessarily agree with these statements, I've provided them to show you that anti-capitalist PoC exist, despite liberal attempts to erase or marginalise their opinions (and in the case of some like Fred Hampton, outright assassinations because of their views).