This is a really interesting topic, and I appreciate how you framed it. I think emotional connections with sex doll companions are more complex than most people assume. For some, it's not about replacing human relationships, but creating a safe, nonjudgmental space to express intimacy and affection. Customization definitely plays a big role — giving someone the ability to shape a companion that reflects their emotional needs can be powerful.
Of course, it's not for everyone, and the connection isn't “real” in the traditional sense, but the feelings that develop can be genuine. Loneliness is real too, and if someone finds comfort and consistency this way, I don’t see the harm.