I totally agree. However, what you are describing, I think, is an unavoidable consequence of development. The "best" (what is best depends on morals, ethics, politics, religion, etc. and is subjective) we can do is have a safety net to soften the blow, which we already have. I think determining the fair level the safety net provided is a much larger debate which gets into the political side of economics, ethics, etc.

During the industrial revolution, the automation of the loom created the Luddites. During the 20th century, factory automation created the Rust Belt.

Gentrification is another example of how development kind of screws people unavoidably, but there really is nobody to blame.