Same way you ensure any other person isn’t being exploited. Society provides resources allowing the person to have the opportunity to not be leveraged into exploitation as their only option.
[1] https://www.nswp.org/sites/nswp.org/files/Declaration_bookle...
I've literally never seen a functioning union anywhere I went (I live in Europe). Everyone I met in my life, in a bar, etc is angry at their unions.
Incidentally, I personally think the limit for communist societies is around 50 people or so.
Another issue is that people have unrealistic idea about what can and should be done in a day/week/month. They don't care about their own work nearly that much, and will forgive themselves a lot, but will expect others to upheld that unrealistic standard.
On the flip side, as a native Scandinavian I have many colleagues from outside of Scandinavia that moved here because of many of the things unions have accomplished - 25 days of paid vacation, a culture of working your 8 hours a day and not more than that, and a child care system that allows you to spend more time with your kids.
Not all of them are, but it does not seem like the issue has been solved.
"Exploitable people are pushed into sex work" is closer to being true than "sex workers are exploited," only because almost no one starts out as a sex worker if they have better opportunities.
"It's estimated that internationally there are between 20 million and 40 million people in modern slavery today."
"Human trafficking earns global profits of roughly $150 billion a year for traffickers, $99 billion of which comes from commercial sexual exploitation"
"Estimates suggest that about 50,000 people are trafficked into the US each year, most often from Mexico and the Philippines. "
>Society provides resources allowing the person to have the opportunity to not be leveraged into exploitation as their only option.
"In 2018, over half (51.6%) of the criminal human trafficking cases active in the US were sex trafficking cases involving only children"
https://www.dosomething.org/us/facts/11-facts-about-human-tr....