Assuming the Pro-SC debators don't want to say 'Yea, the only way we win is by long-range missile attack or orbital bombardment', shall we cover some of the other elements?

Though any of you who want to concede such are welcome.
Cloaked Wraiths Attacking Bases/Cloaked Ghost Nuking: Psychic Sensor. Some testing proved that, yes, cloaked units are revealed by the Sensor, and cloaked units attacking something within the radius of the Sensor are also indicated. Gatling Guns eat the Wraiths as their invisbility fails them, and the Ghost is smashed by a Brute.
Psychic Abilities: While an unassisted Yuri Clone may be no more powerful than a Protoss Templar, keep in mind Yuri's mastered the fusion of mind and mechanical. Masterminds, immune to mind control, will seize control of groups of troops(Though eventually explode if they take too many). Yuri Prime himself can seize control of entire structures. The Psychic Beacon will affect many minds in a city, though some will be spared. The Psychic Amplifier will completely dominate a continent! And the Psychic Dominators have both tactical and strategic settings.
SC's precious 'Detectors' may be able to find Mirage Tanks, but they better hope the Mirage doesn't burn them first!
Prism Tanks backed by Apocalypse Tanks are simply unstoppable, as anyone whose faced such a horrible grouping knows. What are you going to do to it?
Superweapons clinche it in a ground-only setting: The Soviet Nuke, the Allied Storm, and the Yuri Dominator will shred a base, while the sudden creation of Brutes from Zerglings, and the sudden appearance of Iron Curtained Prism Tanks will blow apart the remaining base.
Manic Progressive: A liberal who violently swings from anger at politicos to despondency over them.
Out Of Context theatre: Ron Paul has repeatedly said he's not a racist. - Destructinator XIII on why Ron Paul isn't racist.
Shadowy Overlord - BMs/Black Mage Monkey - BOTM/Jetfire - Cybertron's Finest/General Miscreant/ASVS/Supermoderator Emeritus
Debator Classification: Trollhunter