If there was a HOF for the DL, it would have all the Mets players for the last 50 years. Since 1962 they have probably used the DL more than all other teams that have been active since then, but I don't think they keep records for that stuff.
If science advances to the point where a fetus could be viably sustained at any stage after it is conceived, and a woman wishes to NOT have it but will allow it to be gestated by these other means (a big incubator maybe). Would that calm down the majority of pro-life / pro-choice groups? And...