Jews maintained a pretty strong connection to the land. They keep praying to be in Jerusalem and Zion. The connection is a central part of their identity and faith. Jews also generally stayed together as a people and a group and genetics do show this connection. It's not exactly a secret that Jews had a country in the region- it's mentioned in the most popular book in existence.

I'd say the connection of Israeli Jews to the land is stronger than the connection of most citizens of most countries to their land. To descibe that as "tenuous" is at best unfair.

[EDIT: erased a bit of not so nice retort]

Israel's right wing isn't very different than right wing parties in other parts of the western world. I'm not a fan of Israel's extreme right but conflating the violence between Israelis and Palestinians with either the rise of fascism or South Africa is just again yield to propaganda. The various governments of the Palestinians, the PA or the Hamas, make the Israeli right wing look centric. Put aside the various labels that are intended to dehumanize the Israelis, after Israel tried in earnest to make peace roughly around the proposed two state solution and was met by a wave of Hamas suicide bombers that impacted at some level every single Israeli, what do you think is an actual solution here?