A supporter of demonstration is someone who passionately advocates for the rights of others and backs their actions in public protests or rallies. They believe in a just society and strive to bring about change by standing up for those who are marginalized or voiceless. Some synonyms for the term "supporter of demonstration" include activist, advocate, protestor, defender, champion, ally, and sympathizer. Each of these words conveys a slightly different emphasis, but they all describe someone who is committed to making a positive impact in the world. Whether working through direct action or behind the scenes, these individuals embody strength, resilience, and a deep sense of compassion.