Dentist wants to pull my second molar and hope that the wisdom tooth grows into its place on its own instead of rct? (Photo)

Your dentist has a good point. In most cases, a tooth with a root canal would not last more than a few decades. If you pull the 2nd molar and use braces to move the wisdom tooth, then you might have a healthy, living tooth for a lifetime. That being said, I always want to save teeth when possible. Before pulling it, you should talk to some orthodontists and make sure you can find someone that is confident about move the wisdom tooth into place. Moving molars laterally like that might take a few years.