Peace be upon you all,
I was reading through this thread and would like to contribute from what I know.
The first thing we must all understand is that the term "Allah" is not just a name but rather a word in Arabic. The common noun for "God" is "illah", it has a plural "illihe" meaning "Gods". However the word "Allah" is a PROPER noun and has no plural, gender or variations and means "The God". So the whole concept in Islam is that God is God of all creatures irrespective of any factors (religion, gender, sexuality, form, shape or size - incorporating plants, planets, humans, etc). So in that sense we can see that when a person of any faith calls upon God, no matter what name they use, they are actually calling to "The God" or "Allah". In that repsect your statement would be correct. A perfect example of this can be seen in the middle east where Christians call upon God as "Allah", they do not say "oh thats the Muslim god" but it is well known that Allah means "The God".
Taking an idealogical analysis; the statement would be completely incorrect, as we will see. Best to my knowledge in the Sikh belief God and Creation are one part of the same. However this is untrue in Islam, where creation is not "part" of the creator but has been created seperately for a purpose. Furthermore in Islam the belief that "God is within us" is against its teachings. God is percieved as a being who exists as a seperate entity from all created beings in entirety. So wether to consider anyone or thing to be in part being God (as in Christianity with Jesus) or in any form shape size being God (as in religions which use statues/idols) is considered a violation of the basic belief in One God.
The basic tennant of faith is Islam is,
"La Ilaha il Allah"
Translated:
"There is no God but The God"
And this God is not given any form shape, size or even gender (even though you see "he" being attributed to God in the Quran, but that is an effect of language, not an issue of Gender)
I hope my contribution to this discussion will help enhance our process of learning.
Peace be upon you all,
Your brother in Humanity,
Aku