I am sure you have every reason to be proud of your son. Political views should never interfere with the love between a parent and a son or daughter. My belief personally is that for whatever reason, anyone that writes or reports about political events today simply can not keep their political bias totally at bay. I think every person on this board would admit to that. If you pawn your writings off as editorial comment then you have told the reader buyer beware. In those situations IMO, the writer violates being truthful to his real opinions and the readers when they change their opinions for political convenience. Not blaming your son for this because I would not know.
For example, if you were ok with people being arrested for not following social distancing, not wearing a mask, or that man that was arrested for playing in a park with his kids, how do you now defend these same Governors, Mayors, and Police Chiefs that watch severe crimes of violence happening right in front of their eyes and people are not arrested? Hypocrisy is what I hate the most from any side of the aisle, and right now the hypocrisy has been off the charts from the extreme left (is there any other kind right now?) since before Trump took office.
Does not make it right, but anyone with a recent University education stands a good chance of being brainwashed by the lib elites that have invaded our Universities. So, perhaps some "journalists" are incapable of unlearning the very prejudices they have been taught and the inability to think for themselves.
You would have been better off just linking the article and seeing what people thought, you would of had some really honest comments. I think you knew if you just posted that link the opinions expressed would have been really criticized on this forum and you hoped by indicating this was your son perhaps some might "listen". But, some people will not change their opinions for political convenience or to perhaps lie to make a fellow board poster feel good about his son's writings.
Be proud of your son, but do not ask for opinions if you do not really want them.