I am a multiethnic/mixed race male, (And therefore considered non-white and 'diverse' by US racial standards), and I find the pandering completely unnecessary. Yes, the people of the past were problematic, and yes, the field has been mostly Western European male dominated. The common names of birds is NOT something that has been a barrier to entry or has made me felt like an 'outsider' to the field. The truth of the matter is that, whether we like it or not, these honorifics are a part of the history of the formal standardized description of organisms. (Not discovery, though- most birds were already known to various people groups but were not formally described in the international standard spearheaded by Western European naturalists.)
Changing the names to 'appeal' to non-white birders seems like trying to sugarcoat history to me. It seems like people getting offended on others' behalf, when there are more pressing matters at hand. I don't think that reason is valid.
However, I am not fully for or against the name changes. A part of me is excited for it, because name changes mean new names to lean, and I always enjoy learning about new species, which the new common names may feel like at first. However, I can definitely see how this is not something everyone likes, and once someone is used to something like a name, they would not want that changed.
Another reason why I am not decidedly for or against the changes is that honorifics are often implemented in the scientific name. I think it is fine if the person responsible for the creation of a scientific name for a species, if they were the one who formally described the species according to the international standard, were to have the scientific name after them or someone they were connected to. This way, the history, however potentially ugly, can be kept. I would be staunchly against changing scientific names for reasons other than taxonomic updates.
However, I don't see a reason in principle for common names to also be honorifics. Common names should be that- common. Their purpose should provide utility, so I am generally in favor of avoiding honorifics for common names, especially for new splits.
Another point is the language itself. Why should any species be named as if they belong to someone? A scientific name can honor someone who formally developed the scientific name for the species, but as for common names, I don't see the argument as much. Species don't belong to whoever formally described them, so it does not make too much sense for the language of the common names to reflect something like that.
tl;dr, as someone who the changes in part may be potentially trying to appease, I don't really appreciate that notion. However, I think that the general idea behind trending away from honorifics for common names is not a terrible idea, so I am not decidedly for or against the changes.