CharlieHall.
In regard to Dr. Tendlers shiur on health care, in the shiur you posted he uses the same chiyuv of hashavas aveida to justify a halachic basis for health insurance. I suggest you read it again if you are unaware of that. (I might add that it is an assertion that is patently ridiculus).
Regarding Meziza B’Peh. Tosuggest I would consider abolishing it because of Dr. Tendlers writing is to suggest the absurd. To suggest it puts childrens lives at risk when it is done to thousands upon thousands of children each year with no adverse side effects is even more absurd.
Let me be clear Meziza B;Peh has been demonstated to be an itrinsic part of the Bris milah ceremony by those who are far more knowledgebale then me those include Rav Yisroel Belsky shlita, Rav Feivel Cohen shlita, Rav Hillel David shlita, and Rav Lazer Ginsburg shlita any of these eminent Rabbonim and Poskim (Rav Feivel Cohen Badei HaShulchan is one of the basic texts used by those studying for semmicha today, Rav Lazer Ginsburg has written a Two Volume magnum Opus on Bris Milah entiteled LBris Habate)would take issue with your assertian regarding Dr. Tendler.