Why do LDS believe Joseph Smith was a true prophet?

A recent question and an older question have accrued several answers with 'false' prophecies of Joseph Smith. Below is a compilation of them: 1. D&C 84:2-5,31 Prophecy that the temple would be built in Missouri within Smith's Generation >2 Yea, the word of the Lord concerning his church, established in the last days for the restoration of his people, as he has spoken by the mouth of his prophets, and for the gathering of his saints to stand upon Mount Zion, which shall be the city of New Jerusalem. > >3 Which city shall be built, beginning at the temple lot, which is appointed by the finger of the Lord, in the western boundaries of the State of Missouri, and dedicated by the hand of Joseph Smith, Jun., and others with whom the Lord was well pleased. > >4 Verily this is the word of the Lord, that the city New Jerusalem shall be built by the gathering of the saints, beginning at this place, even the place of the temple, which temple shall be reared in this generation. > >5 For verily this generation shall not all pass away until an house shall be built unto the Lord, and a cloud shall rest upon it, which cloud shall be even the glory of the Lord, which shall fill the house. > >31 Therefore, as I said concerning the sons of Moses—for the sons of Moses and also the sons of Aaron shall offer an acceptable offering and sacrifice in the house of the Lord, which house shall be built unto the Lord in this generation, upon the consecrated spot as I have appointed 2. D&C 87:1-3 1832 Joseph Smith prophesied that the United States civil war would eventually engulf all nations >1 Verily, **thus saith the Lord** concerning the wars that will shortly come to pass, beginning at the rebellion of South Carolina, which will eventually terminate in the death and misery of many souls; > >2 And the time will come that war will be poured out upon all nations, beginning at this place. > >3 For behold, the Southern States shall be divided against the Northern States, and the Southern States will call on other nations, even the nation of Great Britain, as it is called, and they shall also call upon other nations, in order to defend themselves against other nations; and then war shall be poured out upon all nations. 3. History of the Church, vol. 2, p. 182 1835 Joseph Smith prophesied the Lord’s return within 56 years >President Smith then stated that the meeting had been called, because God had commanded it; and it was made known to him by vision and by the Holy Spirit. He then gave a relation of some of the circumstances attending while journeying to Zion—our trials, sufferings; and said God had not designed all this for nothing, but He had it in remembrance yet; and it was the will of God that those who went Zion, with a determination to lay down their lives, if necessary, should be ordained to the ministry, and go forth to prune the vineyard for the last time, or the coming of the Lord, which was nigh—even fifty-six years should wind up the scene. 4. History of the Church, vol. 5, pg. 394 1843 Joseph Smith prophesied that the United States government would be overthrown and wasted within a few years if they refused to redress the wrongs committed against the Mormons in Missouri >**I prophesy in the name of the Lord God** of Israel, unless the United States redress the wrongs committed upon the Saints in the state of Missouri and punish the crimes committed by her officers that in a few years the government will be utterly overthrown and wasted, and there will not be so much as a potsherd left 5. D&C 114:1 Apr 1838 David Patten would go on a mission (he died October 1838 before he could) >1 Verily thus saith the Lord: It is wisdom in my servant David W. Patten, that he settle up all his business as soon as he possibly can, and make a disposition of his merchandise, that he may perform a mission unto me next spring, in company with others, even twelve including himself, to testify of my name and bear glad tidings unto all the world. 6. History of the Church, vol 6, p 116 1843 >While discussing the petition to Congress, I prophesied, by virtue of the holy Priesthood vested in me, and in the name of the Lord Jesus Christ, that, if Congress will not hear our petition and grant us protection, they shall be broken up as a government How do LDS explain how Joseph Smith is a prophet when there are false prophecies?