If demographics trends in Texas remain as they're currently projected and if Mexican Americans continue to vote they way they do, they can totally take Texas in the next decade (projections I read suggests it should become competitive around 2020, though some argue a strong presidential candidate can put it in play as early as 2016, but I'm not sure if I'm buying it).I don't think any state party gives a shit about what someone outside of the State thinks about what they do. They have only to answer to their constituents.
And lol @ the notion the Democrats can take over Texas.