Faction...well, that's kind of ill defined. If your neighborhood has different views than the neighborhood across the street, you now have two competing "factions".
And Communities of Interest is hard to define. I live in Corpus now so I haven't learned it as well, but I lived in the DFW area for quite some time. Just Tarrant County would probably be at least 20 different CoI...Do they all get separate representatives at the state and federal level? Obviously, the answer is no, because that's not practical.
Now, the weird ass districts they draw now are, in my opinion, not a great solution and there's got to be a better way to do it that respect CoI. But, I still believe, at the aggregate level, if the state votes majority Party A for every single statewide office, then the overall values of the majority of the state tend to align with Representatives from Party A and the split of Representatives should represent that (hence, Representative)...
I will say that some of the laws that are on record somewhat DEMAND that we get at least some of these weird ass districts since they require X number of majority minority districts, which drives the process in part.
BTW, factions started right after Washington left office and has been going on our entire history. What we have now is just a continuation of 200+ years of "destroying our political culture"...
And now that's 2 posts in Politics in the past several years...