Fair enough.
I agree that the majority of “proof texts” are copied from Josh McDowel sources, and I would venture to state that if one is going to have an intelligent conversation with a Jew, a Catholic should take the time to read Midrash, Talmud, Rabbinic sources, etc. Not many people are going to do that, however. I have to an extent, so I can have an intelligent conversation with you on it, but I am not an “expert in the field” by any means.
I would say that there are a few key texts, (Isaiah 53 being one of them of course, but everybody points that one out so it really isn’t even that fun; Haggai 2, etc.) that do convincingly point to Jesus as the Messiah.
As for converting Catholics to Judaism, I’d say that has an even lower success rate than Catholics converting Jews. We already get accused by Protestants of being “too Jewish” as it is. (Yes, I have heard that one quite a few times). Although the Jews I have known that have converted remarked that the transition to Catholicism was much less jarring than it would have been as an evangelical, so maybe there is some blessed truth in the accusation.
You are quite right, however, about silent evangelism. I enjoy these forums as a way to debate my faith with others, because honestly when I am defending Scripture and having it prodded by the other side, I actually tend to learn it more, and retain the knowledge. It’s a learning experience for me, and gives me valuable insight into how others view things. But when it comes down to it, my true joy is giving a homeless man something to eat, volunteer work at an orphanage when I was stationed in Korea, etc. I am the “head knowledge” in my house but my wife truly puts me to shame with her quiet example. I studied for thousands of hours when not on mission in Iraq, but honestly I think being married to a woman that lived the teachings of Christ is what made me Catholic.
The best you can hope to get out of posting on the forum is to learn the other side and have intelligent discussions contrasting beliefs. And if yours or others are swayed, so be it. I enjoy your presence here, as I do Ben Masada’s however, so I hope you don’t leave.