The communist goal was to unite the "Proletariat" against the "Bourgeoisie" and finally to create a one class society.
Real communism is a whole different animal though...
You need to read more "parts". Before they can achieve their "Utopian paradise" of Communism in the West, they must first destroy the current society. One of the main themes and stated goals stated by Marx was the destruction of the family unit. Another repeatedly stated goal was the destruction of religious institutions. The idea was to destroy western society from within by eroding its foundational properties so that it would be thrown into chaos, therefore making way for Socialism as a means to bring in Communism. Regardless of Marx explicitly talking about using many minority groups and subcultures to divide and destroy Western society or not, it falls in line with his stated goals to do so, and is very clearly practiced today by modern Marxists, Socialists, and Communists.
Only the blind fail to see that what you wrote is exactly what is happening in the US as we speak. And it clearly started happening with a greater frequency once a certain someone was elected to the highest office in the land back in 2008.