By Yew Lun Tian and Ben Blanchard BEIJING/TAIPEI (Reuters) -It is up to the Chinese people to resolve the Taiwan issue and China will never renounce the right to use force but will strive for a peaceful resolution, President Xi Jinping said on Sunday at the opening of a major party meeting. Taiwan, which China views as its own territory, responded that it will not back down on its sovereignty or compromise on freedom and democracy. Tensions between the Beijing and Taipei rose dramatically in August after China staged war games near Taiwan following the visit to Taiwan of U.S. House Speaker Nan…