The point of VRA districts is to allow minority communities adequate representation. That will always be a valid criterion, no matter how (un)polarized racial voting patterns become.
This is what always gets missed. Bringing up Tim Scott or Lauren Underwood is a total red herring, it's not about simply electing black Representatives, or even requiring black majority districts.
For example it'll be basically impossible to keep OH-11 majority black after redistricting especially with Ohio's rules on redistricting. That's not a violation of the VRA, nor is there a requirement that long snaky districts be drawn to create black majority seats.