In my mind there's a huge difference between the 2. The sony rootkit was installed in secret, full of security holes, hard to remove, and made by a vendor that appeared to give 0 shits about said security holes.
All of the anti-cheat solutions I've seen that run in kernel mode are none of those things. They make it well known that they're installing, are made by vendors that actively care about the security of their products, and are trivially easy to remove once they're no longer needed.
All of the anti-cheat solutions I've seen that run in kernel mode are none of those things. They make it well known that they're installing, are made by vendors that actively care about the security of their products, and are trivially easy to remove once they're no longer needed.