Arrivals...There Goes The Neighborhood

This is a relatively thought provoking sentence. It can mean a multitude of things depending on the person who reads it. To me, this summarizes our previous history (regarding habitats, communities, cultures, etc.)

By our history, I include the United States' history, as well as other places.

For example, in the United States, when it was previously known as a new piece of land, Native Americans, to our knowledge, tamed the country before anybody else. The country was well developed in the Native Americans minds, and they used it well. Cultivating and killing only what they needed, they did not waste anything, and lived well among each other. Upon European arrival, the NA were weary but also curious of them. Cautiously, the NA welcomed the Europeans, and after mutually benefiting each other, things took a turn for the worse. War over land and materials started on the sacred land. Not only did this happen, but NA were dragged into fighting for various sides preceding to exterminate hundreds and thousands of them.Well.... there goes the neighborhood.

Throughout the entire world, people live in an extensive selection of neighborhoods. In some people's minds, segregation is a better thing than in a well developed and equally racial populated area. To some people, if the entire neighborhood is green, everything is alright, no harm, no foul. Once someone who is blue or purple moves into the neighborhood and starts being active in it, well, there goes the neighborhood.

Depending on the situation, or people, various racial, gender, sexual preference, and every other factor about a someone's personality can effect the way in which someone views them. Once their 'neighborhood' is contaminated with the types of people they loathe, then, according to them, there goes the neighborhood.

It's a bit difficult to explain, but I hope I gave an overall idea.