We're okay with transgender/queerness because we've stopped seeing the gender divide as actually meaningful. Once we stop seeing racial divides as actually meaningful, we'll be ok with transracialism too
This is a well-studied topic, and is what’s referred to as essentialism. The fundamental difference is intergenerational discrimination.
Your understanding of this topic would be helped by reading:
This article seemed extremely weak to me. Women have also experienced many of the things this article claims are unique to black people. Would transgenderism be less acceptable in a more obviously oppressive society, such as saudi arabia?
Not sure if you got to this part, but I feel like this pretty well addresses your concern. It seems like you're misinterpreting the "intergenerationality" effect here, and only understanding it to mean "oppression".
Still weak even given this; it's unclear why intergenerationality is a good reason for disallowing transracial identities as opposed to other things. If this thing suddenly and magically applied to women, would you consider transgender identities to no longer be valid?
Yeah I really think you are missing the point of the article - basically racial categories accumulate intergenerationally. So you cannot change your race because you cannot change your ancestor's race. 1/
Even though it is a social construct, it is an intergenerational one - and the identity depends on your shared history with your ancestors. So someone claiming to be black or indigenous is simply not appropriate nor does it follow from the usage of the category. 2/