I suspect above poster wrote zionism as a way to refer to neo-zionism, since people often mistakenly call nzo-zionist proponents that way.

The gist of the idea is that zionism is a "dead" ideology already, since it has reached its goal of creating a state. The remaining question about it is whether Israel should adhere to post-zionism or to neo-zionism.

Most people in the west opposing the current situation would probably fall in the post-zionist category if they were told about the concept.