This Is A Fair Question

[Fake Messiah]

You’re the one that embraces a religion that advocates slavery. Who’s been had?

Bu but SLAVERY!..

Was there indentured servitude? yes, it was purely voluntary, you were not allowed to force someone in to servitude / slavery.

And he that stealeth a man, and selleth him, or if he be found in his hand, he shall surely be put to death. - Exodus 21:16

once again

Yeah who wouldn't want to live like that:
“Anyone who beats their male or female slave with a rod must be punished if the slave dies as a direct result, but they are not to be punished if the slave recovers after a day or two, since the slave is their property. --Exodus 21:20-21

Just imagine those little girls all wanting to be slaves:
"What do you want for 8th birthday? A pony?"
"No. I want to be a sex slave."

Now therefore kill every male among the little ones, and kill every woman that hath known man by lying with him.
But all the women children, that have not known a man by lying with him, keep alive for yourselves. --Numbers 31:17-18

Now, let's say that Indentured servitude was almost always voluntary, except when it was applied as a criminal punishment or was the result of a rare illegal kidnapping. Slavery was completely forced and involuntary.
Indentured servitude is not same as slavery and as you can see Bible is clear that slaves are property. A slave was considered property and could be mistreated or even killed (because "punishment" for killing a slave was only if the slave was Jewish, but if it wasn't then even that little punishment was off) at the whims of the owner. Indentured servants were freemen who had the same rights as anyone else. Indentured servants had the recourse of the law to protect them from abuses. Slaves never had any recourses or protections.
Also Indentured servants are paid, even if it's in nothing more than remission of their debt. Slaves receive no recompense whatsoever.