"They eagerly seek you, not commendably, but they wish to shut you out, in order that you may seek them."

Yeah, it's from the Bible. Yeah, Paul was talking about something completely different from political programs. It still seems to fit. There are people who seek to destroy the existing system first, in order that there will be no alternative but to build a replacement. They thereby show that they seriously doubt their ability to persuade people that their alternative is better. (They also assume that their alternative is the only alternative, or at least is the one that will be chosen. They are, I think, over-optimistic in doing so.)