I am sure many "Terf's" or feminists who want to exclude us out of hand from any feminine discussion, would also want to group all of us into one group (transgender, cross dressers and drag queens) into one category, and say yes.
Internally though, we know that is not true and the answer is so much more complex. Blackface by definition is a form of theatrical makeup by primarily non black performers to represent a black person. So drag queens by definition could fall into a similar definition. Primarily gay cis males who use forms of makeup to represent women.
From there on, the comparison gets murky.
Cross dressers, are primarily "straight" cis men who often are feeding a deep seated need to look like cis-women. You can draw your own conclusions if that is a form of "black face" or not. The old term "transvestite" can also be applied here, if you like.
Finally, when you consider transgender women, "black face" should not enter into the conversation at all.
Being over simplistic on purpose, trans women want to do much more than just look like cis-women, they want to live like one. The deep seated need to live a feminine life often takes over one's life, even to the point of ending a life if nothing can be done. Insert, transsexual here if you would like.
My difference between the two is ideally a transsexual woman (or man) deeply desires to have genital surgery to complete their gender identity, where as a transgender person is more content to live the life of a gender they weren't born into. With or without surgery.
At any rate, I thought the "blackface" discussion was a thought provoking one.