@Thomas,
There are extremists in all movements. I dont know how far the uS is divided on abortion but, as far as whaling "research" you are assuming that we dont recognize that The Farley Mowatt and Steve Irwin are breaking laws of the seas. Olga and I have argued that with CJ in the past. Im of the opinion that, for, this case, a little civil disobedience is warranted to put various pressures on the whaling nations.
To extend that to the dissenters of a womans right to have an abortion is a decent point to make I suppose. However, if we just do point/counterpoint comparisons as to which disobedience is more Heinous proves nothing and accomplishes nothing.
In the case of the fugitive slave acts, remember we did fight a considerable war over the subject. Perhaps, after several generations of precedent , the entire "choice/non choice" issue will be modified to bring folks closer together without a similar fight. There are many points that the anti choice folks make (like late term abortion) that I agree with, but there are also many facets of their position that are mere attempts at control based upon religious dogma .
I have no idea how the "pro life" extremists justify murder. however, their use of murder wont have any effect achieving their desired goal, on the contrary I feel it will only provide moral support to the pro choice side.
However, in thematter of whaling, which , I think we all agree, is the act of removing an entire family of organisms from the earth by calculated industrial extermination. ALSOthis extermination is being done by a small minority of nations who try to justify their national appetites for whalemeat by calling the forced extinction "research" is ridiculous and is an affront to the civilized world.
Im a contributor to several of the "pirates of the seas " including the bikers of the anti whaling crowd, The SEA SHEPHERDS. Im proud to be a supporter . Id dearly live to man a zodiac and put my boat in between a whale and a harpoon, Im that passionate about the depraved indifference of the act of whaling.
So I cannot really answer your comment about comparisons of the killing of abortion doctors and the bombing of clinics with attempting to stop the killing of whales, other than the fact that one is the of taking lives to make a political point, while the other makes an eco-political point by attempting to save lives..