Lipman has not done anything that would make him a rasha. Rabbi Feldman called him that having misunderstood what Lipman had said. This is straight up loshon hara.
Come now, do you really think that is so?
If that was so, Lipman would have called Rav Feldman and explained it, and Rav Feldman would have retracted it on his own accord.
Der rasha wouldn’t be all over the internet trying to drum up support for himself.