Peace brother Adil,
Verse 4:119 is not cited as central evidence against circumcision. It is one of three verses including in the final thoughts of the article to show that Satan has in his remit the ability to create false desires without any warrant.
The fact that the practice of circumcision for males and females as
'religious decree' has absolutely
no explicit or implicit support in the Quran is in my humble opinion, sufficient warrant for it not to be considered part of God ordained religion for believers. If it is practiced, it is practiced out of choice.
With regards your second related question, there are necessary developmental needs within the ambit of medicine and general science where such methodologies are advantageous to humans. Such a restrictive reading of verse 4:119 would stand in conflict with simple matters such as curative surgery and disease control. If one takes lean from the
general sentiment / wisdom of verse 13:17 and the phrase
"wa amma ma yanfa'u 'nasa fayamkuthu fil'ard" (and as for what benefits humans remains in the earth) one can easily posit support for the advancement of ethical methodologies which humans can muster as resources from the planet which has benefits for mankind.
Of course there are ethical objections one can raise with such technological advancements such as the use of biological warfare etc, but as with anything, humans have the potential to make use of resources for good and evil. This has even been alluded to in the Quran.
These choices will be accounted for.
I hope that helps, God willing.
Joseph.
UPDATE BY QM FORUM MODERATOR13th March 2013
This thread is now closed and a direct link to this post is now available at the dedicated Q&A page.
http://quransmessage.com/articles/q&as%20FM3.htmThanks.