You wrote "Q30:30 commands us to follow adDeeni Haneefan (The Religion Upright), which includes circumcision of the males, and it also commands that No change should there be in the creation of Allah."
Another 'creed of Abraham' religious worshipper who reads verses in the Quran and then looks in the Bible for commandments to follow!
Circumcision is another example along with the namaz ritual physical prayer that is not found in the Quran but so-called muslims are doing thanks to their ancestors. They have created the absurd belief that Abraham was given the instructions to be passed down the generations, 3000 years ago, so Allah did not need to put these religious obligations in the Quran but made it compulsory to follow them! Some of them have the cheek to say that they do not accept hadith as they cannot be reliably transmitted from the Messenger over the 250YEARS it took to write them!
Allah says in the Quran that it is the final, complete and fully detailed instruction manual that must be used to judge what remains of the truth in previous scriptures, but this is not enough for the ancestor worshippers who want to continue with their indoctrinated practices.
If you think this is not so bad, namaz, circumcision, then look at the Bible and see how it allows the capture and abuse of women and children prisoners of war which is now a sunnah practice but is condemned in the Quran. Many little lies add up and it does matter.
Creed of Abraham is following One God, not associating partners with him, being upright, kind, etc. but no, anything they want to make up becomes an obligation because Abraham was apprently given it!
By the way, when Allah says "No change should there be in the creation of Allah." this means he created you born with a foreskin and you are supposed to leave it alone, or else YOU are changing the CREATION of Allah!