I think Harris is trying to capture a group of Americans that hardlines on immigration, unfortunately some of what she’ll concede on during this election cycle will likely alienate progressives in favor of tempting the opposition. It’s strategically valuable because progressives will still vote for her, but maybe a few conservative voters will be swayed.
Imo it’s more important to pay attention to how she’s voted, how she acts, and whether she will change her mind when presented with important information. In that way she’s by far our most trustworthy candidate even on issues like this one.