Some people laugh at this, but you can practice sprawling. Also when you are taken down, you got to focus on getting up asap. Don't get into their game, just worry about pushing them off you and getting back up.
Even if you hate grappling, you're still going to have to do it to work on escaping. And you got to get comfortable getting up from the turtle posistion. Some guys get really nervous giving up their back. But a few simple things make it a bit easier.
Like keep your ching tucked in, focus on breaking their grip and locks at their hands and fingers. And don't listen to some dumbshit that might say breaking a lock by pulling fingers is finger manipulation, it isn't. Finger manipulation is trying to break their fingers.
Personally I hate grappling, I hate rolling, I hate it lol. But I am decent at it, and actually got a win off a kimura in my last fight. Striking is my best and favorite skill.
But you can't be stupid, sometimes subs are handed to you on a golden platter, and you got to be versed well enough to take advantage when they are their. If you just stay too much one dimensional, you are going to miss out on some wins.