There is no viable alternative, and your choices are the big evil or the little evil. You can either vote for the little evil or accept the big evil!

There is a viable alternative, it's called organizing and overthrowing your damn government.

You fed the little evil for decades until it grew big enough to eclipse humanity's future.

You're right there's only two parties in the us and you have to vote for one of them, otherwise you get shot. And thats the only things that are possible for you to do.
Guess we just have to walk down this road until the lesser evil party is also goose-stepping on your neck and then I gotta walk all alone. I'll walk by the cage in which they keep you and tell you I am real sad about it, but I had to do it because the other party was less cordial. Then ill go have brunch with whoevers left in the electoral hellscape we have created by inchworming towards a completely avoidable Armageddon if we had only had spine. But we dont, we've got mimosas instead.