1) Gentrification has moved most of the lower-income folks in Queens away from the subway lines. And in the Bronx, there is not much subway access to begin with (the lines are spaced as far apart as the entire island of manhattan).
2) The NYC congestion pricing scheme would apply to folks entering Manhattan. That would seem to include folks coming in from the Bronx and Queens.
The overall point remains--the "bridge and tunnel crowd" aspersions always were classist, but the gentrification of manhattan has now made it quite racist as well.