In theory it's a good thing, but in debates of these kind one of the parties of convince switches side. It isn't about to find a common ground.
Its a wast of time these interfaith crap.
Either they repent and join the church or they shall perish.
It isn't interfaith dialogue. It's one faith dialogue because we are just there to tell them their religion is false and most of them don't want to join us and, specially in the Jewish case they sai they'll be out friends of basically we stop being Catholic. It's the ultimate stupidity. When someone says this who know it's time to stop.