Better to read the guy's whole comment:
"I want folks to think about something. I want folks to think seriously about how slavery really works. Back in the day of slavery, slaves were kept in slavery by denying them education and opportunity while providing them with their basic needs .. Not by beating them and starving them. (Although there were isolated cases if course) Basically slave owners took pretty good care of their slaves and livestock and this kept business rolling along.
It is my sincere belief that over entitlements are a means of em- slaving the people by robbing opportunity while taking care of basic needs. Think about it. We ARE NOT cattle. We are human beings living in a country that still allows us the opportunity to write our own ticket. But that is rapidly slipping away. We have to wake up fast and realize that entitlements aren't there because politicians love the people. It's a means to gain power over the people allowing them to control us. Vote smart in 2014 and pressure political leaders to focus on jobs, education and opportunity - not slavery."
Basically, he is saying that clientelism is a sort of form of slavery that politicians wish to impose. In many ways, that's very truthful. The Peronists are masters at this sort of thing. Of course, he underestimates that slavery was due to war and bringing people across an entire ocean in destitute and dangerous conditions, and he underestimates that slavery could often be horrifying. But his basic point is true and apparently this politician would be very anti-peronist (the masters of clientelism). It's always important to read comments in context.
We need to recognize that the ultimate goal of most politicians is not usually the well being of us citizens. It is usually power. Both Republicans, Democrats, Peronists, and other politicians operate by the same playbook. It is human nature. That is why we should always be very suspicious of clientelism in politics (and Democrats and Republicans both practice heavy handed clientelism).