They are a fake party that comes out every four years (after primary season, when they could have become an actual viable candidate in our broken two-party system), to be a spoiler candidate that siphons votes from the Democratic party.

Every time.

Then they disappear for four years, and re-appear again at the same time during the next presidential election cycle and do it all again. They are not a serious party. If they were, they would have actual candidates running at state and local levels. They would participate in the primary process and/or campaign to switch away from First Past the Post system.

But they do none of that.