Are you living in a basement where only ND exists or something?
ND is a 15 point underdog to Georgia in 2019, they were a 13 point underdog to Clemson last season, and a 15 point underdog to OSU back in 2015. They haven't been favored or even within single digits according to vegas against a big time football program since the early 90s back when Notre Dame could actually recruit from the top of the athletic food chain.
ND would be big underdogs (low chance to compete let alone win) vs Georgia, Alabama, Clemson, OSU, OU, & LSU. They would be underdogs vs Florida, Auburn, and Michigan.
As an ND fan I wish I was as delusional as some of the posters on this site. Whatever you are drinking/smoking please pass it my way.