This question was posted a while ago, but the answer does not work anymore as YouTube settings have changed. Plus, the answer will have your YouTube account disabled for a while before you're able to use it again.
I have found a different answer which worked for me without requiring the deletion of the channel nor deactivating it (you can use it as you're deleting). Since I am new here, I am unable to answer that question. Therefore, I am asking my own and answering it for anyone who may need it.
So to repeat the question, is there an way to bulk delete YouTube comments without deleting the channel nor deactivating it?