I can simplify this way more: Parental estrangement is a big deal for cults because family connections are how they entrap members. The modern right is in many ways indistinguishable from a cult therefore this is now a policy plank for their platform.
i hate the topic of parental estrangement/no contact or whatever. all these boomers act like cutting your parents off is a fun and cool thing to do when the reality is that it's heartbreaking to have parents so unwilling to consider their children's humanity that it came to this.