[DE] [Spoilers] The ending?

How did such a high percentage of people agree to join Safi??? Her Mom was cruel for all the lying but Safi just shot her and essentially leaves her there. Broke into Max's house and trashed the place and right after, while MORPHED as "Max", let real Max chase her onto a frozen lake all while shit-talking her. Then, if you choose NOT to stand with her, she morphs into "Max" and walks away like she's saying "Just remember I can do ANYTHING I want as YOU" which is such an obvious threat.

With D9 showing they don't put effort into 2 storylines, she seems like she's bound to be the antagonist in the next game. The people that chose to stand with her, why?