Environmentalist, feminist, black activism, LGBTQ+ how does it impact you?

What is the power of activism? What change did it bring? 

This is my experience and relation with activism, I am a woman therefore a feminist? I am black, should I support BLM?

Nowadays, no one seem willing to have a conversation but shooting what's wrong or right according to their own belief but will disregard people who don't agree with them. This is the first episode of season 2: Activism what is it really about?