A lot of work can be inherently political. If your company pivots into mass surveillance is it unreasonable to speak up if it's against your ethics framework?
That's the beauty of the free market, you have the freedom of choice. You can vote with your wallet or your feet. You can leave if your personal ethics and morality no longer align with the organization you're working for. A business doesn't owe you a paycheck simply because you think you're on the moral high ground.
I'm not saying you're entitled to a paycheck - a company has the right to fire you for your differences in politics. But if you frame it as a relationship, communication can help both sides as long as it's done with some mutual understanding. There are times companies listen to their employees and change their stance. And if they don't then you still have the ability to leave. That said it also matters how differences in views are expressed, I doubt there are many cases where yelling is effective..
It’s perhaps a cultural difference. I grew up in an era (90s, 00s) where people who were overly political were mocked and ridiculed. Certainly you’d never run into it in the workplace. That’s not to say you should never voice your political beliefs, but there is a time and a place for it.