That’s not pessimism, it’s defeatism. And it’s part of the reason why the world thinks Americans are stupid. Trump’s supporters are in the minority now and the majority thinks they are powerless.
You only need a million people in Washington to make a change. It starts with one.
Most Americans either actively supported this administration, or didn't mind it enough to even do the minimum (which is to vote against it).
How you'd possibly convince such people to reconsider is beyond me, and an uprising without popular support would go essentially nowhere.