Hee hee, this is great, reminiscent of the knock-down drag-out editorial meetings at the paper... nothing like grammar to incite the passions....
Let's go -
So you not only don't understand what an adjective is -- you don't understand what a conjunction is either??
A
conjunction connects two different ideas; it does not
equate them.
"Hearts
and flowers"
does not mean that flowers are hearts.
"Hither
and yon"
does not mean yon is hither. Indeed they are opposites.
The inclusion of both concepts in the example is completely superfluous. It could have said "the report was full of racist bigotry" and worked just as well. What's before and after the conjunction are not the same things; if they were, the combination would be redundant. It could have said "the report was full of poems and right-wing bigotry". That wouldn't make right-wingness "poetic".
"In tomorrow's weather we expect wind and rain" -- does not mean wind and rain are in any way related to each other. It does not mean any time you have rain you must have wind. And it makes no value judgment about whether wind or rain is a good or bad thing.

This just gets better and better. Where do you actually SEE this "report"? How do you know it's from the "msm"? I can't even see a damn report. Do you understand the concept of "imaginary"?
There. Is. No. Value Judgment. Made. About. Right. Wing. Anything.
There is a statement made
about what was in some imaginary report.
What was in the report?
Two things: (one) racism; and (2) bigotry.
What kind of racism? We don't know. Doesn't say.
What kind of bigotry? "right-wing".
It's an adjective modifying "bigotry". It simply expands on the description.
What does "right-wing bigotry" mean? Again, we don't know, it's not defined, nor does it need to be, because this is an example usage of
bigotry -- not "right-wing".
Had it left racism by itself it might have implied that bigotry is the same thing as racism, therefore they insert another kind of bigotry, even though it's a poor example.
They could have said for instance, "the report was full of racism and other bigotry" or "the report was full of racism and anti-homosexual bigotry". Would have made the same point. The first and second element are not related to each other; if anything they imply a diversity: that bigotry means more than one thing. IMHO that's why there are two elements present: to clarify that
bigotry is a broader term than just the first term, in the instant case "racism".
You cannot infer equation between two nouns just because they co-exist in the same sentence. Now if this example had said, "the report was full of racism and
other right-wing bigotry" you'd have a gripe, because then you'd have at least an implied correlation. But that's not what it says. Perhaps it's what the OP likes to pretend it says but it isn't.