Voldemort had the right idea

Muggles destroy the planetLike you said, muggles have massive technology. This technology exploits and destroys nature. Muggles pollute the atmosphere, cut down habitats, poison the rivers, and kill massive amounts of species. If we allow muggles to continue their exploitation of nature unopposed, they will wipe out the planet, and we will all die, Muggles and Wizards alike. If Muggles die, the Earth lives, and Wizards live. If Muggles live, the Earth dies, Muggles die, and Wizards die.2. Muggles have no rights according to their own moral systemMuggles hunt and kill animals for sport. Their justification is that it is only an animal, an inferior species, and has no rights. Therefore, we would have every right to eliminate muggles because they are inferior beings, with lower life span, and no use of magic.3. HistoryHistorically, two seperate homonids cannot exist together. The superior always wipes out the inferior. Such is the way with nature. By wiping out muggles, wizards would be furthering evolution, and contribute to a better gene pool, a better dominant species that can co-exist with nature, and peace and harmony for all. _______________________________________________________________________________________________________________Rebuttals:"On your various spells, you still have to say the spell aloud for it to work"All you have to do is mutter the Muffilato spell, as mentioned before, and nobody will hear anything you do after, so you can cast as much as you like. And wizards do have invisibility cloaks mass produced. Not to mention the disillusionment charm. "If you try to open your mouth to say a spell, they will fire"Ah, but the thing is, they asked you a question, and if you look like the president, they probably aren't going to fire too quickly. Also, I never said you would have to be the president. You could be a general, a secret service member, a CIA director, or whatever. Just think of the untold damage you could do. "Everyone will notice the disappearences of the people in the station, follow it through, and find the location in question"Their are many things wrong with this statement. First of all, kids have been going to Hogwarts that way for years with no problem. Also, in the Chamber of Secrets, a simple house elf blocked the way. If a simple house elf could block it, than a full blown wizard could do it with no problem. Then, even if they somehow get through, they will have to get on the train, which will be impossible because their will be higher security measures in a full blown war with muggles. Lastly, my opponent over estimates the importance of Hogwarts. Their are at least 2 other schools, and even they are just schools. "But the killing part is how numerous humans are. It doesn't atter how much you have, because countries such as Russia and China have massive armies". Ah, but you forget the greed and tension between different countries of the muggle world. The wizards could "ally" with the U. S and western powers, or Russia and the eastern powers. Then, muggles would do the damage for them. After half of the muggles are wiped out from the war, wizards will easily conquer the rest, and have the element of surprise by turning their back on the muggle "Allies""The idea to start a war with muggle kind would lead to the destruction of the magic world"So? Like you said, wizards don't have a huge level of technology to rebuild. They could easily rebuild what they had with the use of magic. Also, if you are referring to nuclear fallout, keep in mind that wizards have spells such as Wingardium Leviosa to redirect missiles, Depulso to send them away, Reducto to destroy them prematurely, and they can Apparate (teleport) away before the missiles even hit. The fact of the matter is, muggles are a pitiful race that we have allowed to oppress wizards for years. Their own greed and taste for war between each other will be their downfall.