Lest you forget, the people vote for the representatives. There were 18 different consequential national elections between 1955 and 1968, in which every single member of the House, Senate, and Presidency were up for election multiple times. To characterise this as legislative activism is outrageous and without any historical corroboration. The vast majority of voters were not harmed by black people. They voted for change because they believed it to be moral, not because they saw black people harming white people on the news. I asked you to substantiate your claim and given this response it seems clear you know that you cannot.
> If a child is bullied at school and suffers in silence, chances are they will continue being bullied. If they fight back or make a scene, a teacher is far more likely to take notice and possibly be convinced to correct the situation.
This is not how it works in most parts of the Western world anymore. The child who is being bullied reports the bully and the authorities (usually a teacher or other faculty) address the issue with various forms of remediation. I feel sorry for you if this was your experience at school. It sounds awful.
> The US itself was founded like this...
I'm not sure if you understand the implication of invoking the founding of the nation as a cultural pillar for future change. At this time slavery was moral and legal. Women couldn't vote. They were effectively property. It seems you're being selective about one aspect of the past to justify a vision for the future in which force is required for change.
Do you believe that it is moral and just for anti-migrant protestors to use force against you? Or is it just the things you personally care about where force is acceptable? I think we both know the answer to that question. This is why in a democracy we give everyone one vote, and we require them to follow the law. That means not using force to coerce others. If you were to succeed in your vision for society, you'd have to accept that others would use force against you for their aims, and you'd be a hypocrite to condemn it.