Can a revolution be considered successful even when certain people are excluded from the revolution?

To a large extent, yes.

Explanation:

Revolutions are not necessarily democratic movements that aim at including everyone in a society. In fact, many revolutions have as a goal to exclude certain groups of people that are deemed to be undesirable or adversary.

For example, the Russian Revolution did not try to include the wealthy landowners and the aristocracy, because they were considered to be the enemey.

native americans suffered high rates of poverty and unemployment.

during the late 1960s and early 1970sthe need for political militancy grew among the native americans. throughout the 1960s, they had been the nation's poorest minority group, the most deprived group, according to practically every socioeconomic measure. in 1970, the indian unemployment rate was 10 times the national average, and 40 percent of the native american people were below the poverty line.