Aside from the obvious insane hatred you have due to your fractured Lost Cause fable of history, if Booth had done as you suggest, the "South" would have ceased to exist in 1865. All of your Confederate heroes from Davis on down to the lowest officer would have been hung, your states broken to pieces and treated as territories not reconstructed and re-admitted as if a war had never happened. "Southern Culture" would have been as completely and totally eradicated.
Killing Lincoln was the worst thing that could have happened to the south in 1865, but the outcome would have been much worse if it had happened earlier before Lincoln gave orders that there would be no reprisals and before he proposed his plans for national reconciliation that allowed the Southern states to stay intact. He correctly predicted at the time that some small-minded white men would never get over losing the war and their “social status” but the work ahead was about healing wounds and fulfilling the promises of the Declaration, not nurturing grudges.
Read some of the copperhead papers of the time and see what they thought.
Remember the victors write the history except in the 2oth century.