potential plot with poor execution and many holes

Rating: 6/10 (26 March 2019)

The good: I thought the acting was excellent. The set and cinematography were both also well done.
The bad: in a nutshell, I was too engrossed with deciphering the cryptic symbolism/allegory of the film that I was not scared at any point during the movie. The only thing I experienced was "confusion". Even after the explanation of the thethered people was revealed, I had more questions than answers. I understand that experiencing a film requires suspension of logic and reality. However, I am remaining with the logistics and reality outlined by this film when I ask the following questions
1: if the tethered people were forced to mimic the movements of the people above, when did they have time to pursue independent movement and thought to plan and stage a revolution?
2. If Lupita's original version was wrongly held captive in the underworld, how did she then inherit the thethered people's mimic behavior? I mean, the thethered individuals were secondary to the originals. So wouldn't that mean the escaped Lupita would still be mimicking the lupita stuck underground? or was there a mind data transfer that I missed?
3. It was advantageous for thethered lupita to learn the behavior and thoughts of the above ground society. this would allow her to remain unnoticed and free. this was her incentive and motive to keep her true identity a secret. What was imprisoned lupita's incentive to relinquish her old identity and adopt the behaviors of the thethered people? Much like thethered lupita's hard work in adapting foreign behaviors and mindsets, original lupita would also need to work hard at adapting to a new lifestyle. why would she put so much effort and time into wanting to lead a sh** existence of thethered? what's her motivation?
4. "they can clone the body, but not the soul". ok cool. that's your premise. but why does the plot of the entire movie rest on the fact that deceptive lupita embodies soul, love, bravery, and compassion for her family until the big secret is revealed at the end. looks like she had a lot of soul.
this movie isn't touted as a B rated slasher movie. If it's supposed to provide social commentary, then it should be subjected to criticism. Here's my response to people who are "marveling" at its depth and complexity, but at the same time say "oh, relax it's just a movie!". you can't have it both ways. is it just a nonsensical horror joyride or is it thought provoking social commentary?