Which sociological perspective would consider activism such as Occupy Wall Street and Teacher's Union rallies undesirable, because they force political change?

The Functionalist Sociological Perspective would consider this type of activism undesirable.

Explanation:

Functionalist Perspective identifies social elements as either functional, which contribute to the stability of society, or dysfunctional, which disrupt social stability. Because this type of activism desires change through force, it will be identified as dysfunctional, hence undesirable by the functionalist perspective.