Metzitzah B'peh

I thought that another way of putting the argument for Metzitzah bpeh is using the following analogy:

A person once went to Brazil to meet a tribe that never met with civilization.  The chief of the tribe asked the visitor about life in the greater world.  The visitor started describing the modern world with its phones, planes, trains, buses and cars.  Fascinated, the chief asks the visitor but isn't these huge metal objects flying all around kill people? The visitor was taken aback by the question and answered meekly that yes people do die.  The chief hearing this starts to get angry.  Do children die too? He asks his voice rising ever so steadily.  The visitor answers again meekly that yes even children die and for a fact over 1,000 children died in automobile accidents in the US alone in one year.  The visitor tries to explain how vital these forms of transportation are but to these primitive people no answer would be a good answer.  With raging fury they sent the visitor away saying they don't want to be part of a society that sacrifices their children for the comforts of a modern society.

So why don’t we ban cars, trucks, planes etc.?  Since we know they are necessary and we live with its consequences despite the fact that over 1,000 children died in 2010 in horrible automobile accidents. 

Now Bris Milah and Metzitzah bpeh has yet to positively linked to HSV but you want to ban since you don’t deem it necessary.   But actually we as orthodox jews deem it even more necessary than cars, planes, trains and all the other dangerous new technologies that are out there.  This practice signifies who we are.  It’s our convent with God how can we give it up because some ignorant people deem it dangerous.  We would sooner give up driving cars, planes and using phones than to give up this Mitzvah.  We can still live without cars and planes but how can we continue as a nation if we drop the laws that has kept us intact after thousands of years in Diaspora?