Yes, that is exactly what I want. The airlines as an industry were formerly highly regulated. I'm not seeking a return to those days of regulation, just a requirement that they be required to offer larger seats at cost. Essentially I want to government to prohibit them from shrinking the seats in an effort to force passengers to pony up massive amounts of money for a seat that ought to cost 10 percent more.

There is nothing wrong with the government setting a minimum standard to which all businesses must hew. We do it with minimum wages, working conditions, etc. An 18-inch wide seat and 32 inches of pitch seems a reasonable base to me. Fares will rise slightly, just as the minimum wage causes hamburger prices to go up. As a society we are better off with some regulations.