Drag has a long history within the LGBTQ community and I'm not aware of any general sentiment that drag is inherently transnegative. I suppose it should be dealt with on an individual basis, e.g. whether or not an individual performer's act is transphobic, just as you wouldn't invite a sexist comedian to perform at a feminist venue or a homophobe at a Pride event.
(I acknowledge that I may be speaking from a position of relative ignorance and am happy to be corrected.)
