The OP was stating a conservative would have been more likely to draw that attack, not that racism actually existed in this case.   He may have a point.  You stated "Which of these is the white candidate? " It is between a Chinese-Canadian candidate and a Tamil-Canadian candidate.  The former group has been entrenched in Canada much longer, than the latter.  People of colour are not discriminated against en-masse by racists, some groups are sadly targeted as "worse".