>>8616>>witches do continue to exist alongside every girl rescued through the Law of the Cycles
How so? Madoka's wish was to erase all witches. They're gone—past, present, and future. The LoC takes the magical girls before they can complete their transformation into witches.
The only exception to this that I can see is Homura. The LoC should have taken her before she became Homulily but that did not happen due to the events in Rebellion. So I could understand if the minions we saw were Homulily's familiars. But they're not—there are a variety of them, not just Homulily's.
>>Another thing I would like to add is that Homura herself is shown to be able to make herself invisible to the common eye
Yes indeed. But I don't find that very surprising; after all Homura is Homucifer now; she appears to have very significant powers.>>8617>>familiars from various witches working at the service of the Law of Cycles girls
Now that is a very good point and I had not considered that before. It's not explained how/where/why those familars came from but you're right that there is precedent for them working for the LoC. And that actually makes sense with regard to how Homucifer interacts with them: If they are agents of the LoC then it makes sense as to why Homucifer would interfere with them. I don't think that Homura is necessarily their "master"—more like she is now powerful enough to control them. She makes them disappear because she is opposed to the idea of Madoka as Madoamki/LoC/Etc, and instead wants plain 'ol human Madoka instead.