Union organizers and other labor activists still get blacklisted, harassed and propagandized against by larger industries/capital. It's an evolved form of the "red-list" that existed all the way up until the 90s. A friend of mine had their father put on that list back in the day and basically was unable to find a job for close to two decades.
It goes both ways. I ran a restaurant in a very small chain, it needed a small exterior wall repair and the guy who oversaw all five locations hired his brother in law to do it, the BIL was a contractor and did it cheap, it was a small job. The next week I was told by a couple of my regular customers that they couldn't come back to eat there because we got blacklisted for hiring non-union workers. As a GM I'm supposed to drive sales through good product and service - and I did! But that was out of my control and honestly made me less friendly towards unions. I've tried to get union jobs, that's less than 5% of jobs in my area and I've never gotten one. That standard is still ridiculous to me. Why the fuck would you blacklist a company for not hiring union workers when all of their employees aren't uniion and are making slave wages, and no one can actually get union jobs? I know huge corporate America is doing okay, but the common man can't afford anything extra right now.