I see it different. The convention is thinking about the boys in scouting that will not leave because of the new changes. They want to maintain a positive influence and also use it as a way to minister to homos in the scouts (until they get sued for it). Bible says love sinner, hate the sin. While I do not share their ideas on sticking it out and would have cut ties, I see what they will try and do.
There is no such phrase in the Bible. That phrase is a very rough translation of a Latin phrase in St. Augustine’s Letter 211, which reads cum dilectione hominum et odio vitiorum—better translated “with love for mankind, and hatred for sins“.
Bible says love sinner, hate the sin
No, it doesn't.