This spirit was propounded in "Manifest Destiny, in U.S. history, the supposed inevitability of the continued territorial expansion of the boundaries of the United States westward to the Pacific and beyond." This sense of  inevitability could be applied at any time and anywhere a resilient, ambitious, and even desperate and ruthless  people come to a relatively sparsely populated region where the inhabitants do not have the wherewithal to resist their military, economic and cultural power. A corollary to this inevitability is the likely ethnic cleansing and/or genocide of the natives.

I was triggered (in a purely intellectual sense, not emotionally) to contemplate the European experience in America in comparison with Israel today by one of my favorite podcasters when he described Hamas, and I think more generally the Palestinians, as "savages."

Europeans arrived in North America to a relatively sparsely populated continent full of potential. The Zionist Jews arrived in Palestine to a relatively sparsely populated territory that was a part of the sickly Ottoman Empire. By the 19th century the Manifest Destiny to control the continent from ocean to ocean was fixed in culture and was official policy. "The term "Greater Israel" has been a contentious and debated concept related to the State of Israel and its territorial boundaries." The concept of Greater Israel is certainly in their culture and seems to drive many policy decisions.

Relations with the indigenous peoples were mixed in North America. But there is no doubt that the native Americans were often very savage. Many tribes lived in constant warfare, committing murder and torture while making slaves of their victims, especially women and children. The European Americans could be vicious in turn. Perhaps the capstone event of Manifest Destiny and the ethnic cleansing that went with it was the Wounded Knee Massacre in 1890. While 90 Indian braves were killed, the killing of about 200 women and children made this a massacre. The following quote found at the Wikipedia page is illuminating of the mindset in the 19th century American west and, I think, the mindset today in Israel.

"In an editorial response to the event, the young newspaper editor L. Frank Baum, later the author of The Wonderful Wizard of Oz, wrote in The Aberdeen Saturday Pioneer on January 3, 1891:"

"The Pioneer has before declared that our only safety depends upon the total extermination of the Indians. Having wronged them for centuries, we had better, in order to protect our civilization, follow it up by one more wrong and wipe these untamed and untamable creatures from the face of the earth. In this lies future safety for our settlers and the soldiers who are under incompetent commands. Otherwise, we may expect future years to be as full of trouble with the redskins as those have been in the past."