Sure, legacy admits don't cause people to resent URM's, or perpetuate negative stereotypes, or stigmatize minority accomplishments, or cause urms to cluster near the bottom of their classes.
However, the whole point of creative admissions is to alleviate privileged (white) white guilt, not help urms. Rich whites don't really need any extra help anyway, and legacy stuff really makes them feel guilty, so let's focus on this and ignore the broader problems. After all, we don't really care about urms beyond superficial gestures, and we certainly don't want ANY poors in our school with us, regardless of color. Give us a bunch of upper-middle class folks from a nice variety of backgrounds (without too many asians) and we'll be fine.
Who's with me?