"What you're talking about doesn't remotely contradict the fact that Islamists are the evil empire's great allies."
I didn't know my job was to 100% contradict everything you say - sorry to confound you. I'm not doubting the "Islamists" as you call them are being trained, equipped, fed, clothed, funded, and supported by Uncle Sam. I just don't agree that this is happening first and foremost because America loves Evil Muslims and secretly wants to wipe out all the religious minority sects that Islam has previously failed to wipe out over the last 1400 years.
"I'm talking about the annual quota of slaves the Umayyads imposed on the Berbers, among others, which led to the Berber revolt."
The Berbers? You mean the tribes that provided the leadership and most of the manpower for the conquest of Spain 30+ years previous? I thought you were talking about enslavement of non-Muslims? Are you morally opposed to conscription now? I confess that I find a Stalinist getting worked up about people being forced to work for the state highly amusing.
"I'm sure you'll rationalize the utter annihilation of one of the greatest and civilized empires in history from the history books thanks to the Muslim "liberators"."
Considering that Persians constituted most of the bureaucracy of the early Caliphate and Persian continued to be the language of cultured people in the Islamic world for a couple centuries after it was "annihilated", I would say the situation was not as bleak as you and your bigoted right-wing Islamophobic friends make it out to be.
"I seem to remember someone telling me that slavery in the plantations wasn't that bad because slaves could own property. Oh wait, that was you."
I will give you the benefit of the doubt and assume your memory is a little hazy. What I pointed out was that freed blacks could own property - not slaves. I never said that being a slave "wasn't that bad" - but I did say that free blacks in the south had it better than freedmen in the "enlightened" north, where they were literally banned from many states (in addition to many other inconveniences, like being kidnapped and sold into slavery down river).
"2/3 of the slaves were women, most forced in slavery for sex. Male slaves were castrated, because after all the Muslims couldn't trust them to behave."
I'm sure I'll get a good laugh out of your source if you're brave enough to reveal it. One of the hundreds of novels on the Life of Aimee de Rivery perhaps?
"First, yes Islamic civilizations could be oppressive."
I've never said otherwise (all governments/civilizations are oppressive - it is only a question of degrees). What I have said is that they weren't anywhere near as bad as Putin and his mass-murdering right wing friends make them out to be, and in many ways they were far less oppressive than the big, bloated, and intolerant Byzantines they supplanted.