Sadly, there is a HUGE anti-union sentiment in tech, almost to a religious degree. I don't think the tech industry is smart enough to unionise, similarly to the video game industry, who have dealt with equal amounts of shit, yet still plug away in horrible conditions.

The fact that the pro-union people won't even try to hide their contempt for the people they claim to represent certainly isn't helping matters. Unionization involves a lot of trust and union organizers seem unwilling to lift a finger to earn that trust, instead jumping immediately to insults whenever someone doesn't instantly toe the line.