What steps can individuals take to challenge systemic inequalities?

There comes a time when someone has enough. As I’ve grown older, I’ve seen the gap between rich and poor grow and watch as the middle class disappears. Houses are now no longer attainable, inflation has skyrocketed and wages have stagnated. How do you combat this? Raise wages and the cost of everything will go up resulting in a net equal effect.

I don’t have the answer for this other than taxing the uber rich. There are many people who have more than enough and many people who just don’t.