I brought this up in History class in high school and also pointed out that black slaves were treated like property so their owners had motivation to take care of them as opposed to the Irish slaves who weren't even considered property so the owners had less motivation to take care of them and got sent to the principal's office for it. For all the arguments that my principal had with me throughout jr high and high school it was the one time he was actually cool to me since even he realized nothing I said was incorrect or offensive and because I was able to back up my argument in class.