I'm thinking of ditching a radio production group that will ultimately drag my grade down and leave them with a heavier workload due to them not turning up to lectures
Are you going to ditch them sooner rather than later?
It's going to be soon because they have a complete lack of understanding of what is going on.
I say you have every right to ditch them. They're not doing their share, so why should you stand for it.
I'm going to ditch them right now, to be honest.
It's not your place to pull the weight of the entire group and you are well within your rights to walk away. They shouldn't be able to slack off and then benefit from your hard work.