I have earlier wondered if Feiglin would support peaceful secession.
Well, I discovered the answer in the comment section by the writer of “Tomer Devorah”:
I stood on the same street corner with Rav Baruch [ed., Kahane, son Rabbi Meir] handing out Feiglin literature years ago even after Moshe Feiglin told me to my face that if Jews in Yehuda and Shomron tried to break away and create a separate State of Judea (a project I was heavily involved with at the time) he would fight against it. He said that were he the Prime Minister, he would fight against it with force.
…
See the context here. (For more on Medinat Yehuda, see this.)
Despicable.