Furthering the M&M analogy: Let's say you have a box with 10,000,000 M&Ms. 1000 of them are poisonous, and of those 1000 10 are deadly, 290 make you sick for a week, and 700 will mildly inconvenience you for a day.
My point is that removing UB is like removing 1 deadly, 20 sickening, and 70 inconveniencing M&Ms. Which, by every metric, is a great thing. The only thing that bothers me is that some people act like removing UB is equivalent to removing all 10 deadly M&Ms, which obviously isn't the case.