The MyIsrael grassroots organization responded to reports that the process of applying Israeli sovereignty to Judea, Samaria and the Jordan Valley depended on the establishment of a unity government.
It claimed there was a solid majority in the Knesset even without one.
"I'm not sure that establishment left-wing figures represent a consensus for sovereignty," said MYIsrael chairwoman, Sarah Haetzni Cohen.
"At best, they will procrastinate until the train has left the station and at worst leave the government just before the historic process."