The classic "an effective protest is one that is neither seen nor heard". Which is just ahistorical. Civil rights in the US was not passed because black folks explained to white people that they are people deserving the same rights as them. I hate this white washing of history as a series of peaceful movements that everyone agreed with.

The other side of this is that the people doing the protesting have to have the fortitude to accept judicial punishment. If the punishment is out of whack WRT the crime, then you get popular support (e.g. a year in jail for sitting at a lunch counter). But the current situation where folks can break the law and then suffer no consequences? F that noise.

There is nothing wrong with being seen or heard. Instead it is that being violently disruptive tends to lose you support.

You are posing a false dilemma where the only thing a person can do to voice there opinion is to destroy or disrupt things.

That's not true though. Instead you can simply voice your options. You can put out manifestos, publish articles in the newspaper, post to social media, or even talk to people in person.

All those methods are how speech and ideas are normally distributed in a normal society. And if people aren't convinced by what you say, then it is time for you to get better arguments.