Well no... the type of idealism that Cyrus spouts is probably most close to anti-natalists - or the position that birthing someone is a moral wrong because of the suffering the babe will eventually encounter. The obvious answer to this is that the baby will suffer and gain pleasure; however, the antinatalists would argue that suffering is worth more negative than pleasure is positive. This is mostly do to the psychology behind pain; how one good thing is barely noticeable and one bad thing can ruin a day.
The logic employed by Cyrus is similar - that despite the pleasure in the world, suffering makes the getting rid of all pleasure worth it. However, there is a fatal flaw in Cyrus's plan. There is no practical way to ensure that people will both have no emotions and will be able to think at all. You see, neurologically speaking, the ability to be motivated to have "emotion" or "logic" is chemically induced, so if Cyrus would get rid of all emotion, he would be getting rid of your ability to think or act at all - as they are all dependent on the same chemicals.
Furthermore, as the actual ACT of ridding all emotions is a harm, his plan is a net harm, comparable to genocide.