Nobody in Upstate New York, maybe.
Pretty darn popular elsewhere. New lines are opening this year in D.C., Seattle, Tucson (TUCSON!), and Atlanta (again, ATLANTA!). Norfolk opened one last year. And construction begins or continues on lines in Charlotte, Cincinnati, Dallas, Detroit, Fort Lauderdale, Kansas City, Milwaukee, New Orleans, Oklahoma City, Tempe, San Antonio, and St. Louis this year.
If car-centric places like Norfolk, Tucson, Tempe, and Fort Lauderdale can build rail, of course a small old Northeastern city like Syracuse can do it and do it well.
Naysayers may nay, but rail is popular everywhere it's been built. If Onondaga County and the state are serious about leveraging public investment and building a successful region, past experience shows that rail would be a good project.