I'm not the GP, but I think being unaware of the Guardian's reputation is rather the norm in the United States.

I consider it normal and reasonable to be unwilling to be interviewed by media sources I consider dishonest and disreputable. For me that, that includes Breitbart. For others, the list would be different, but the concept is the same.

There is zero point in meeting with an interviewer when antagonistic bias is known ahead of time. The resulting interviews cannot be anything other than character assassination.