Question

Gay rights are pushed for by groups such as the human rights campaign, the national gay and lesbian task force, and the empowering spirits foundation. individuals unaffiliated with any of these groups but supports the cause (by attending rallies and parades on the issue for example), will attend rallies and parades on the issue, could be characterized as:

Answer 1

I believe the answer is: A social movement.
A social movement refers to a form of organized effort that aimed to address a specific social or political issues.
In general, these movement usually an effort to alleviate the suffering from a suppressed group that receive unfair treatment from the majorities.