What you say is certainly possible. It depends on the integrity of the journalist.
I was just reading a Jerusalem Post article related to Hamas and the hostages, and happened to read the Comments Section.
Presumably that is a case where the group is self-selecting firstly by choosing that paper perhaps, secondly by choosing to respond.
They were just about all violent in their feelings about Hamas and Palestinians, some sticking with ethnic cleansing, one suggesting 100 Israeli prisoners killed for every hostage not released, some going so far as to bring up Amalek, or to nuke the whole place with neutron bombs, or accusing the families of hostages forum itself of being pro-Hamas.
So, on the basis of these comments I can certainly believe that some Israelis would concur with those in the video Auvergne63 posted ( with n.b. the wording that she knew not all Israelis would think this way).
What percentage think this way? It does not seem negligible, whatever it is. It would not matter if it were just people’s private views, and we in the UK would be similar. The problem is if the views are a reflection of the leadership, or begin to drive events. There was an article by a former Israeli leader some months ago now saying about 40% of the IDF now are extremists, and the make-up of the government includes extremists who are having a strong effect on Netanyahu’s decisions, and on what settlers are doing in the West Bank.