Assuming magic to be real:
The Christian (Judaic, Muslim) God says magic is OK, IF He is the Source of the Magic. Otherwise, it is wrong.
This implies that magic can come from other sources. If so, what sources are these?
The Christian and Muslim implies that the alternate source of magic is the Devil - thus, not OK.
The earliest Judaic view was that power could come from other Gods in God's pantheon. Since the Jewish God is notoriously jealous, this is not OK.
However, since the majority of non-Abrahamist faiths either claim there are a) multiple gods, b) one God with many, many faces, or c) no gods at all, then this relegates the argument into a different slant.
To those believing in multiple Gods, it is OK for a follower of the Christian God to do magic if the Christian God tells them to, but not OK if they do it on their own- after all, they would then be required to draw power from a different God. However, the same view is then held by each group based instead on their own God. A strict Zeusian would believe he could only perform magic using Zeus' power, but would be wrong to draw on YHWH as a source.
To those who believes God is one God with many faces, the argument is silly, as all Magic stems from the power of God - unless we suggest that power can stem from an individual's own power, in which case we have to wonder why we would have the power to do magic if it were against God's driect will. But, even in this case, the argument could stand, since God is saying, "Use your power if I direct, otherwise you're wrong."
To those who do not believe in God, the argument is moot, since no God exists to make such an edict.
For the modern Wiccan, numerous views as to the nature of Deity (Deities) exist. My own path, the Correllian Nativist Tradition, holds that there is only one Deity, but that this Deity is revealed through many faces, like facets of a diamond. Thus, when a Wiccan calls upon Diana in one ritual, and Il in another, and Jupiter in a third, she is still calling upon the same Deity. She sees no problem with Christians performing magic, or anyone else for that matter. The argument from the Bible becomes moot, because all magic comes from Deity. (And, the Devil doesn't exist, to most forms of Wicca - thus, he cannot be a source of power.)
Therefore, the argument from the Christian (Jewish, Muslim) standpoint involves a denial for the follower from practicing unauthorized magic, but really makes no notes against those who do not follow God and their behaviour, since one expects that the person who does not follow God is also not likely to follow God's specific instructions. To then persecute those who do not follow God's instructions, who are also not followers of God, denotes a specific form of bigotry, and is a means of hate propogation.
This then brings in the ethics of forcing others to follow your own faith. What does the Bible say about forcing other people to become Christians, Rad? This becomes the pivotal point in this argument, after all else is considered.