"no modern country ...practices slavery"
Look again. The entire system of debt used under colonialism is now practised on a global scale.
They've just evolved in semantics
"noted islamic scholars "
clueless
Japan borrowed money, Japan built a nation, Japan paid back their debts, Japan now lends money.
So, according to SAM's Islamic Slavery analogy, when they borrowed money, at that time, the entire Japanese nation were all a bunch of Slaves (just like the Slave in SAMs Islam analogy), then the Japanese built their nation. Just like SAMs Slave improved himself. Then the Japanese paid back their debts (just like the Slave in SAM's Islam Analogy) and now Japanese are a lenders (or in SAMs analogy they are like the Slave-turned-Imam who leads the army's, conquerors other people and turns them into his Slaves that he owns).
As for the other nations who can not (or do not or are not capable of) paying back their debts. Well, they also fit into SAMs analogy. They are the millions and millions (over whelming vast majority) of slaves that didn't make it to become the Imam and lead the Holy Armys of Islam and capture their own Slaves - instead they remained trapped as Slaves for their entire lives until one day they died an Islamic Slave.
So, it's really all the same - according to SAM anyway.
Except this bit. Relatively speaking, people living in free secular democracys have 1,000,000,000 Xs more opportunity to elevate themselves out of their position. In the Islamic system (as in all superstitions systems) the rulers are in place to
KEEP people in slavery. They make damn well sure that only 0.01% of the very best and brightest MIGHT MAYBE rise up in the ranks. But for the
vast majority they will remain slaves of one form or another.
THAT'S the difference.
Just look at KSA or Iran ...
Then look at CHina, North Korea, Vietnam ...
Then look at Japan, France, South Korea, Hong Kong, USA, Canada, Taiwan...