Ought Loyola College to award an honorary degree and status as primary speaker at its graduation to someone who says that Nazism or Communism was just another political philosophy and admirable in various respects? I don't think so either.
It ill behooves institutions using the Catholic trademark of a Faith that teaches that 45-50 million dead innocent babies in the USA are victims of judicial/political murder to honor a political opportunist (he probably recognizes the reality of abortion as murder privately) of any Faith much less our own who claims that it is OK to kill the kids.
Our society can and will pay the price for those 45-50 million dead innocents. Our society has no business expecting the Catholic Church to ratify the societal crimes of SCOTUS and the USA against the unborn.
Whatever his virtues, until Rudy publicly repents, he is not fit to address any Catholic institution, not fit to be on stage at any Catholic function, and, like John Kerry, not fit to receive the Eucharist. Catholic property (like Loyola University claims to be), is as much in control of Catholic authority as your front porch is in control of your personal authority.
Obviously, your fight is with the college since they're the ones inviting him to speak. Maybe you ought to tell them what Catholics who are actually Catholic shouldn't do, that includes arrogance for instance, which is a sin by Catholic standards.
And, I don't mean the arrogance that comes from holding to our own beliefs as true, but in the intense effort to make others do the same.
"For we preach not ourselves, but Christ Jesus the Lord; and ourselves your servants for Jesus' sake." -- II Corinthians 4:5