The hard lifting of undoing it:
One of the falsehoods that has been stuffed into your brain and pounded into place is that moral knowledge progresses inevitably, such that later generations are morally and intellectually superior to earlier generations, and that the older the source the more morally suspect that source is. There is a term for that. It is called chronological snobbery. Or, to use a term that you might understand more easily, “ageism.”
Second, you have been taught to resort to two moral values above all others, diversity and equality. These are important values if properly understood. But the way most of you have been taught to understand them makes you irrational, unreasoning. For you have been taught that we must have as much diversity as possible and that equality means that everyone must be made equal. But equal simply means the same. To say that 2+2 equals 4 is to say that 2+2 is numerically the same as four. And diversity simply means difference. So when you say that we should have diversity and equality you are saying we should have difference and sameness. That is incoherent, by itself. Two things cannot be different and the same at the same time in the same way.
Furthermore, diversity and equality are not the most important values. In fact, neither diversity nor equality is valuable at all in its own right. Some diversity is bad. For example, if slavery is inherently wrong, as I suspect we all think it is, then a diversity of views about the morality of slavery is worse than complete agreement that slavery is wrong.
Similarly, equality is not to be desired for its own sake. Nobody is equal in all respects. We are all different, which is to say that we are all not the same, which is to say that we are unequal in many ways. And that is generally a good thing. But it is not always a good thing (see the previous remarks about diversity).
Related to this: You do you not know what the word “fair” means. It does not just mean equality. Nor does it mean something you do not like. For now, you will have to take my word for this. But we will examine fairness from time to time throughout this semester.