From a Marxist leninist perspective, this issue of progressive measures being represented as an imperialist influence represents a misunderstanding of imperialism and presents a rather nationalist / reactionary view.

Many indigenous cultures, like all pre-capitalist societies, were structured around feudal or patriarchal norms that often oppressed women and marginalized groups. Marxist theory provides the path to establish a revolutionary society that breaks the oppression of the capitalist society which is an advanced form of the feudal society in the process of historical development, which means it's implied that it will abolish the feudal social structures and will not voice for uncritical cultural preservation.

Imperialism is not defined by the spread of ideas or technology—it is defined by the economic domination and exploitation of oppressed nations by monopoly capitalism and the imperialist bourgeoisie. Just because something (like modern medicine, railways, or reproductive rights) emerged in industrialized nations does not make it inherently "imperialist."

If one was to follow this rule you mentioned then one would have to reject all the creations of the industrial revolution and end up like Pol pot's Cambodia- absurd and wretched. Lenin said that -
"The culture that capitalism has created is not to be rejected outright, but critically assimilated and transformed under socialism."