Yes you absolutely should.
Because when you get pissed about those things you will hopefully start to elect the right people who then HAVE the legal power to change them.
If voting didn't matter, they wouldn't work so hard to make it difficult.
The biggest and best changes have always come because the working class made it so.
Prior to universal suffrage, we had to fight and die for every small gain.
Since then, we have the luxury of just voting and protesting.
And when we look back at how much has been achieved, it's just amazing.
My personal pet peeve is that we haven't gotten around to getting tough with tax avoiders. Gotta start really heavily fining those advisors and enablers. Some probably should be jailed.
That's the key to reducing inequality, which will then make the middle class much wealthier and stronger.
Yes, get pissed. Feel that shit, but instead of just letting it get the best of you, direct that anger against our oppressors. Live in spite of them. There are small steps you can take to make change, but first just get angry so you can process this.