Actually the more often than not buy the land, there are almost no accounts of land grab by force.
Israeli leftist organizations constantly try to publish the deals knowing that it would result in likely deaths as the penalty of selling land to a Jew (not Israeli but a Jew) under PA law is death, and if the PA doesn't get to you the neighbourhood mob will.
The Israeli settlements especially around the B areas are a problem but it's less the settlement itself and more the supporting infrastructure associated with, primarily the fact that the Israeli armed forces have to step in and provide protection.
Israeli settlement policy is inconsistent they are actively dismantling the smaller settlements and supporting the big ones, however there is also a perception issue every time there is some headlines of 100,000 homes being built it's a gross and intentional misrepresentation of the facts; since they account for every construction permit as a housing unit even if it's a permit to change the porch or move the sidewalk, and there seem to be complete disregard to the difference between E. Jerusalem, the large settlement blocks which are effectively cities and the smaller settlements which spawn sporadically (and often dismantled) deeper within the west bank.