Probably because when you are having trouble feeding and housing yourself, a fraction of a percent of the population that isn't you doesn't matter. There are more people dying yearly because of failed Liberal+NDP policies than there are trans youth in total.
The NDP should be seeing massive gains in a situation like this but unfortunately they made a deal with the devil that they seem hellbent on keeping, so what do you expect the majority of people to do? Vote Green and Bloc?