Also Slaves =/= Servants
Caucazoid Neo-Liberals and their pets (such as the tweeter in question) HIStorians and people with obvious agendas love to obfuscate and conflate these two terms.
There is nothing wrong with being servant in a certain context. 99.9% of the modern world is in servitude at varying levels.
If you're someones employee, you're a servant pretty much. That was one of the old world definitions of "servant", what we call an employee today. But the term has multiple meanings, context is always important.