I've had more success being consistently That Guy spouting Leftist Nonsense consistently, then letting people cook. People need to become disillusioned with their own stances before they stop defending them, and getting constantly let down or harmed is often the quickest path.
Right now Democrats are practically doing my work for me by proving me right, but I had to spend years being so-called "wrong" in peoples' eyes before I became "right"
My suggestion is to stick to your theoretical guns and be the Muad'Dib that can see the future (through correct analysis of material conditions), and then let that future come to pass. My second suggestion is to not let this or that loss get to you. We're going to lose again and again until we don't.
Let the liberal disillusionment flow :unlimited-power: