Not at all. The difference being slavery is illegal. Laws don't stop anything from happening; we still have murders, rapes, drugs, etc. That doesn't mean our society has ANY tolerance for them - because we don't.
The real issue is priority, which liberals don't understand. If the government is in the business of making sure everyone has cable television and a cell phone, they're not going to have the resources to go after things like that. It's something I've always railed about, to deaf ears among the liberal "intelligencia".
I'm not sure these things are a huge problem in the United States, even though our government regularly wipes its ass with the Constitution because the citizenry is indoctrinated/stupid. Pretty much everything I've read show it being more rampant outside our borders, with Asia and the old Eastern Bloc leading the way. When I was in the military, we got regular briefings about human trafficking - what to look for, where/how to report it, and the penalties if you were involved in it. Even today civilians and contractors are briefed on it at least annually. It's taken it very seriously, especially overseas.