Ben Carson gave a speech on Monday that raised a lot of eyebrows, including Samuel L. Jackson’s.

In his debut as secretary of Housing and Urban Development, Carson told agency employees about the virtues of the “can-do” American society and used “immigrants” who “came here in the bottom of slave ships” as the examples of that virtue.

“That’s what America is about,” Carson said. “A land of dreams and opportunity. There were other immigrants who came here in the bottom of slave ships, worked even longer, even harder for less. But they too had a dream that one day their sons, daughters, grandsons, granddaughters, great grandsons, great granddaughters might pursue prosperity and happiness in this land.”

Naturally, Twitter was up in arms about Carson’s comments. This is what actor Samuel L. Jackson had to say about it:

OK!! Ben Carson....I can't! Immigrants ? In the bottom of SLAVE SHIPS??!! MUTHAFUKKA PLEASE!!!#dickheadedtom — Samuel L. Jackson (@SamuelLJackson) March 6, 2017

And the NAACP...

And Charlamagne Tha God...

If you think Ben Carson's slaves are immigrants comments are bad just wait until somebody tells him to finish this and says "Raindrops.." — Charlamagne Tha God (@cthagod) March 6, 2017

And a few others:

Ben Carson: Slaves came to America seeking to improve their previous situation: On the ground in Africa in a net surrounded by white dudes. — Donald J Orwell (@DonaldJOrwell) March 6, 2017

Ben Carson: Slaves were immigrants who came to America to reach their dreams



Ben Carson's great-grandmother: pic.twitter.com/6uuqxoCWCU — Its Shanahan's Fault (@_fortheloveofAj) March 6, 2017

Ben Carson said slaves were immigrants who came over here & worked for less. By "came" you mean FORCED and by "less" you mean NOTHING — Tariq Nasheed (@tariqnasheed) March 6, 2017

Just another immigrant Ben Carson said came to the US for prosperity and happiness pic.twitter.com/vYHXYBXJQ4 — Jonathan Jewel (@jonathanjewel) March 6, 2017

Ben Carson, sit down.