Independent Texas

During the year 1843, U.S president John Tyler (then unaligned with any political party) decided independently to pursue the annexation of Texas in a bid to gain a base of popular support for another four years.

If we analyze the text carefully, the government of the United States saw this small nation as if it was created to become a state.

If John Tyler focused more on speeches and decisions instead of power and expansion then would Texas become a successful and rich nation?

What if the world still possessed at hand, a nation of an Independent Texas?