This show got you so confused you no longer know the difference between “free reign” and “free will”.
MCU writers really got you nikkas confused in this thread. They say “free will” but the actual concept they are playing around with is “free reign”.
In Kangs pruned timeline people have free will but not free reign. They have the free will to make decisions that make them become variants that split off the timeline but aren’t given free reign to continue to do so, hence them being pruned and the timeline they created being reset.
Your philosophy only works without choice.
If you know you are allergic to eggs
Choice: have toast or an egg sandwich for lunch
free will: eat both, one or the other
free reign: you have an allergic reaction, your fine, etc. the ramifications of that choice.
Kang takes away choice so you have no free reign to get to. That’s why it’s an anomaly.
The only difference between the Avengers and Loki was what Kang allowed. All billion possibilities Strange saw was the e we inning one Kang wrote.