As far as I know, most if not all of these orgs (American Cancer, American Lung, Alzheimer’s Association, etc) support the destruction of embryos for “research and development”. Same as abortion, in my opinion.
I can see how, for the unsophisticated, it would seem “any port in a storm.” But almost all the human successes have come with non embryonic stem cells, and for the development of others there are always animal subjects, about which humane slaughter is never objected to. Why don’t we always hear about this wonderful embryonic stem cell technique which is saving the life of cats or dogs, say? Why do the first guinea pigs for that always seem to be humans?