But why can you not introduce new values by wanting to want new values?
You can, it might be a bad idea (for some senses of “values”), and if you believe that you are doing that, it’s not necessarily true, even though it might be.
I’m not saying that it’s not possible to be correct, I’m saying that it’s possible to be mistaken, and in many situations where people claim to be correct about their values, there appears to be no reason to strongly expect that to be so, so they shouldn’t have that much certainty.
You can, it might be a bad idea (for some senses of “values”), and if you believe that you are doing that, it’s not necessarily true, even though it might be.
I’m not saying that it’s not possible to be correct, I’m saying that it’s possible to be mistaken, and in many situations where people claim to be correct about their values, there appears to be no reason to strongly expect that to be so, so they shouldn’t have that much certainty.