I think you are misunderstanding the Rabbi.
He is not condemning price tag on moral grounds. It's just in his view, he believes pragmatically it is not effective
or not as effective as other tactics.
Just because you differ with him on strategy or tactics, I don't think that this is enough to start
taking away his Rabbinical status.
After all he didn't become the Rosh Yeshiva in Rabbi Kahane's Yeshiva for nothing.
He obviously had a great deal of connection and approval of Rabbi Kahane.
Let us be zealous to guard the honor of Rabbinic scholars.
The article says : "
Yehudah Kreuser of the Binyamin-region community of Mitzpeh Yericho said, Monday, that Rabbi Meir Kahane would not have approved the "price tag" vandalism carried out against, Arab, leftist and military targets in reaction to actions taken against Jewish residents of Judea and Samaria. Interviewed by Arutz Sheva's Hebrew service, ahead of Monday evening's 21st anniversary of Rabbi Kahane's murder,
Rabbi Kreuser said that Rabbi Kahane was against illegal activities, saying people could not take the place of authorities, the state or the Israel Defense Forces"
I can't see any misunderstanding of Yehudah Kreuser in the initial post. That's just what Yehudah Kreuser said.