My intital reaction is yes. We should leave.
However, the fact is that Texas derives many benefis from the Union and it will have to get a lot worse before a majority of Texans support leaving teh Union.
We already have an army, Texas state guard. We just need to establish a DMZ 6 miles into mexico territory. We just need 137 (or something like that) counties to ratify a new constitution and be willing to fight for our corner... here's a good one Texas Constitution 2000 Declaration of IntentOf course, we would have to pay for an Army to be formed to protect our border.