I've seen the Solas-as-Racist-Grandpa a lot, while I am somewhat interested because I didn't get that, it seems like a potentially difficult thing to discuss because of the certainty in the language used. He came off as anti-everyone, to me, kicking back to arrogance in general. He deconstructs the ancient elves as much as he does the modern ones, but treasures memories of individuals of all groups, and is compassionate about their suffering. He and Bull both seem to have the easy to hate an organization, individuals is too much work thing.
Where The Iron Bull enjoys violence against assholes who deserve it, Solas reminds him that they were living men with loves and families, and all that they could have been is gone.
The Qunari thing specifically seemed strange to me because it seemed as much physical as anything else. I like the Qunari as a player, but if he'd said "dragons are usually savage creatures prone to extreme violence when their naps are disturbed" I wouldn't have thought twice about it. For weird dragon-blood horned people who believe they need the Qun to keep their savagery in check, it didn't seem so much hateful as unfortunately blunt. They do believe that, and we don't really know what exactly they are, either. Bull himself fears what he could become as Tal-Vashoth, and Solas supports him.
Additionally, whether it is possible for a free thought to occur in a philosophy is irrelevant if one believes the philosophy itself seeks to eradicate it. That's just a failure of the system's own goals, not a benefit.
There may be too much real world reflection to get past the right/wrong absolute dichotomy though, I don't know.