I can explain the reasoning behind my assertion.
Intense concentrations of lefties in urban areas will create more densely (and safe) democrat districts.  The averages left over allow a greater number of majority R districts with same number of voters.

Now one might say that isn't fair.

Well one way to fix it would be to stop gerrymandering.  Of course that means that crazy leftist ideas would be seen for what they are. For now we have congress critters of questionable intelligence who can be manipulated easily by darker forces occupying seats that would be better served with a dose of humanity and common sense.  But I digress.