Some may question the prudence of Perry entertaining the suggestion of secession, or talking too loosely about such a radical idea, but any fair-minded reading of Perry's fuller quote, and its context, makes clear that Perry was not advocating for Texas to secede. And Perry has repeatedly said since then that he did not, and does not, advocate secession.
Of course Perry didn't 'advocate' secession. He just took advantage of the emotional valence the idea held for his audience. He left it floating as a pleasant fantasy or reserve contingency if current trends persist: