LeftTube (definitely covered by union-oriented content) does a fairly good job of propping up important messages and messengers. You might try uploading a few videos and sharing them with the likes of Hasan Piker, TYT, Big Joel, Shaun, and PhilosophyTube (Abigail Thorn). Getting your videos in front of the right eyes can expose them to an enormous audience, and most of these people do nothing but consume recommended content in one way or another.
It almost never happens overnight, but I think there’s an importance to your story, and we need more union-centric content. Shoot me a link, and I’ll be a day-one subscriber.