If theira student at Berkeley and have the time and motivation to protest over loving tax returns their more than likely not taking a hard course load or running on daddy money and don't have to give a stuff about anything important.
They aren't 'protesting about tax returns', they're protesting about the fact that the most powerful person in the world, and our elected head of state, is refusing to release even the most basic evidence that he's not exploiting his position in order to further his business interests. This problem runs way deeper than, "oh he said he'd release these papers and didn't."
Furthermore, protesting and taking a hard course load are not mutually exclusive. I attend an extremely rigorous engineering school where most people do not graduate in five years due to the rigor of the courseload, and there are still people here who attend protests. I have empirical evidence that what you're saying is bullstuff.
It's a dude who's gone to college, has a job, has bills to pay, and has people to take care of. My world view matters just as much as yours or theirs.
Your worldview boils down to this: "I spawned kids and must take care of them, so clearly everyone who didn't and went to college is just an entitled rich kid." This is the exact same mentality as all of my hick relatives who looked down on me and my parents for actually pursuing a higher education.
I am where I am because I studied hard, I didn't do drugs, I didn't drink alcohol, I didn't raw-dog my girlfriend,
and on top of that, I was fortunate enough to be born into a family with adequate financial resources to support my education. There were many outside circumstances in my life that helped me to pursue higher education, but there were also plenty of choices I made that ensured I wouldn't forget it all up along the way.
I respect the fact you are prioritizing your role as a parent. My grandfather didn't do that, and it forgeted up my family for a long time. Likewise, you should respect the fact that other people have chosen a different path in life, and you aren't entitled to look down on them just because you chose to become a parent. People who study at UC Berkeley worked extremely hard to get there.