Let's sit at the table and discuss something important, I'm not gonna talk about breaking out criminals from prison or the other evil things the Straw Hats have done, I will focus in something they are doing in recent events. Beware that there are [SPOILERS] ahead
When I talk about the World Government and try to defend them I always get a similar response: "But they support slavery!" , Well, recently we are seeing that the Straw Hats are willing to do much worse in order to achieve their goals. We are going to talk about Tama and her power to turn animals and SMILE users into slaves.
Here's the issue, Tama not only turns them into slaves, she completely destroys their free will. I have yet to see the people that attack the WG say something about this. Tama's power causes the victim to see Tama as their goddess and master, they only care about pleasing Tama and follow her orders without question. They look happy because they have been completely brainwashed. NONE Of THEM chose to aid the Straw Hats, they were forced to by Tama's devil fruit ability. They chose to follow Kaido of their own free will and Tama, with the support of the Straw Hats decided to take away their free will and turn them into Tama's mindless slaves where their whole purpose in life is now to serve Tama.
If you ask me, I would rather be a World Noble slave and keep my mind intact, planning and hoping to one day escape rather than becoming completely brainwashed and losing my free will. SMILE users are still people yet Tama and the Straw Hats are more than willing to turn them into slaves as long as it helps them.