Huh???
I met him in 2007 when he was repping the Take, which is a film explicitly highlighting worker ownership and inspired me to co-found a workers cooperative. He has authored dozens of works promoting workers rights since them. And now he has a platform dedicated to protecting workers in a digital economy, which is absolutely a good thing, and has worked for decades to expand union rights.
No NDP leader (or any political leader) has as long a pro worker track sheet as Lewis and he has made it central to his campaign.
Makes me wonder where you are coming from. Were you unaware of the above perhaps?