The unions of long haul truckers came out against the protest. 99% of them are there, on the road, doing their job. 90% of them are vaccinated, just like the rest of us.
The truckers that have their own truck to bring there and block infrastructure are the privileged few who manage to be owners-operators. They represent the working man and woman about as well as the average IT contractor - and they're almost certainly even wealthier on average.
I miss the days when progressives were on the side of the working man and woman, and long-haul truckers were considered folk heroes.