The copts themselves welcomed Islamic conquest as Muslims gave them more rights than previous rulers.
https://www.britannica.com/place/Egypt/From-the-Islamic-conq...
You are attempt to disguise your hate as history is a failure.
It's true that Islam is a Christian heresy but to be fair, Islam tries to be it's own State Religion only for the Arabs. So in that sense it's not the same God since they don't believe in the Trinity.
Another fun fact, the Jewish God and the Christian God are the same… it’s just that the Jewish God didn’t have a son who was also himself that killed himself only to resurrect himself negating the sacrifice
Allah is not a name that came with Islam but existed before, it just means deity. the Al prefix is the definite singular form. It just says one thing: god is a singleton and nothing is above it.