As multiple people have already explained to you, in this instance, the Democratic candidate is the only realistic way forward. You are, stupidly, expanding that to all choices forever because, again, you can’t seem to pick up on context.
You know when a walk sign on a traffic light says “walk,” and then it changes to “don’t walk”? You don’t wander into traffic because it said walk ten seconds ago, right? The poster is trying to tell you not to walk into traffic. The next election cycle, they might say something else, because the situation may have changed. Stop reading things that aren’t there.