The immigration of foreign citizens is limiting opportunity for native people. People from other countries are taking all of the jobs, and they are willing to work for less pay so they get the job first. This is causing the system for getting admitted into the job market to become increasingly more complicated as a result, because businesses are getting increasingly more picky about who of the common folk are being employed. It has even gotten to the extent that employers are processing resumes through machines in order to look for certain key words in the writing.
One reason that The Great Gatsby has now become a byword for the East Coast of the Roaring 20s - the decadently extravagant post-WWI era - is that Fitzgerald was amazing at creating memorable settings. Whether it's the sprawling luxury of Gatsby's mansion.
I believe they were walked to the guillotine and told to kneel at the head of it. They would then be executed while people watched. It was brutal in that time.