The world would better if there was one language everyone could speak

This is my first debate, so if you guys could offer me lots of good constructive feedback, that would be great. Also, by having a single language everyone could speak, I'm assuming that the other spoken languages become obsolete and not used at all/completely destroyed, otherwise the debate wouldn't be fair or fun. C1: The world we live in is a beautiful place. There are several factors that contribute to the beauty of Planet Earth, but a key feature is the diversity that is in the world. Earth is a diverse place with plenty of different ethnicities, countries, and cultures. However, the most various aspect is language. There are roughly 6,500 spoken languages in the world as of right now, and they all have some sort of history behind each and every one of them (1). Every individual language has an origin, some sort of root, and a story associated to what the language consists of today. For example, English actually originated in Germany in the Anglo-Frisian districts and made its way to Britain over the course of several invasions (2). If the world was to have a single language, the memories and stories connected to all the other 6,499 languages such as the rich history of English would vanish and be lost forever. Imagine not knowing your own roots or origins, or even your identity. The cultures associated to the languages would lose what is arguably the most important features in their societies, thus lessening the distinctiveness and losing very remarkable aspects in the cultures. C2: There are several jobs that involve the studies and uses of languages. These jobs include teaching, studying, interpreting, and translating. In fact, there were 63,600 interpreters and translators in the U.S as of 2012 (9). To rid of foreign languages and settle for one single language would destroy all of these jobs that provide money and employment for all of these people. These people would be left unemployed and wouldn't be able to use their talents. R1: Pro states that non-English speakers are given a disadvantage while applying for jobs or schools compared to native English speakers. I disagree, because foreign language speakers are given opportunities that others are not. Knowing a foreign language while living in the U.S is very beneficial. There are several foreign language scholarships which you can receive that can get people into several colleges, such as the Critical Language Program (3) and the Boren Awards (4). Along with college, knowing a foreign language can also be beneficial in job applications and can support better careers. College graduates with foreign language skills often earn a 2% to 3% higher wage than their English-only peers, according to a study conducted by CNN (5). Ridding other languages and settling for one common language would clear all of these possibilities, which would also strip foreign language speakers of their opportunities to excel above other native English speakers. R2: According to the 2006 Canadian Census, for employment rates for the population aged 15 and over separated by bilingualism, people that could speak both English and French had higher employment rates by about 5% than people that could only speak one language (6). The bilingual advantage carries to income as well, as people who could speak both English and French had a median income of $24,974, which was nearly 10% higher than the median income of $22,987 of those who could speak English only, and 40% higher than the median income of $17,659 for those who could speak French only (6). Along with that, it was shown in a study done with 63 Canadian companies that 84% of the employers would give preference to bilinguals fluent in both English and French (6). This shows how the bilingualism is a massive advantage in applying for jobs and having successful careers, which is definitely worth the money spent on educating/servicing the two languages of English and French in Canada. R3: Pro states that discrimination due to language is a problem, especially discrimination among the Chinese by Western Countries. In contrary to that, in 2006 at the higher education level, there were 51,582 students learning Chinese, which was a 52% increase over 2002 (7), The students that are learning Chinese are not doing this to mock or discriminate the language, because that wouldn't make any sense. They are doing this because they respect and like the language, which differs from Pro's claim that the Chinese language is being discriminated. Pro also states that the Balkan Wars happened because of discrimination of language. However, this was done by the leader Slobodan Milosevic, who was later charged by the U.N in the terms of genocide; complicity in genocide; deportation; murder; persecutions on political, racial or religious grounds; inhumane acts/forcible transfer; extermination; imprisonment; torture; willful killing; unlawful confinement; wilfully causing great suffering; unlawful deportation or transfer; extensive destruction and appropriation of property, not justified by military necessity and carried out unlawfully and wantonly; cruel treatment; plunder of public or private property; attacks on civilians; destruction or wilful damage done to historic monuments and institutions dedicated to education or religion; and unlawful attacks on civilian objects (8). This ruler cannot be deemed a standard for discrimination due to his criminal acts, which flaws Pro's example. R4: Pro is stating that there is potential for the language barrier to restrict communication between people. However, Pro does not state any instances where this actually has been a problem in the world, implying that throughout the history of mankind, the language barrier has not been a problem. And also in order to prevent this from ever being a problem, there are interpreters and translators all over the world. In fact, there were 63,600 interpreters and translators in the U.S as of 2012 (9). These people do their jobs to make sure that communication through different languages is easier than ever, and are doing well in this. 1- http://www.infoplease.com... 2- http://www.merriam-webster.com... 3- http://exchanges.state.gov... 4- https://www.borenawards.org... 5- http://money.cnn.com... 6- http://www.ccl-cca.ca... 7- http://asiasociety.org... 8- http://www.icty.org... 9- http://www.bls.gov...