No to apologizing and yes to doubling down on the sinful practice and tell this clown to either get behind the doubling down or go join the other side.
Fogive me. I did not read through the entire article before writing this line and as a result I was wrong abot the man. Of course he has a valid point. As long as the sinner has truly repented from the heart s/he is welcome in the church as is any repentant sinner.