Earlier quoted context omitted.
Precisely. It doesn't mean that their perspective is guaranteed to be rational or free from ugly ideas. But it's a valid perspective.
What does validity mean in this context?
One example I have from someone I disagree with. It was a rich kid about to fully take over his father's company via inheritance, who agreed vehemently with trickle down economics. From his perspective, he created jobs (I'd at least agree with that much). The way that he created jobs was by investing resources on new profitable projects that required labor. In his perspective, how could he ever create more jobs by constraining his resources? He couldn't, but that is exactly the point (someone else creates the jobs, not him). He couldn't see the alternative of government enabling new jobs because the entire sum of his life experience portrayed government as a barrier to investment, not as an enabler of opportunity. The simple fact that he never had to rely on the government as an enabler of opportunity blinded him to the possibility that it could use his resources more efficiently than he could.
I'd consider his opinion falsifiable, but his perspective valid. I would never in a million years be able to tell him his perspective was wrong.