Maybe you don’t mind little boys running around with stinking festering smegma in their pants. I’m glad my parents had me clipped so I didn’t have to endure the hygiene problems and possible penile cancer associated with uncircumsicion.
No, I don't mind. I can teach them to be more hygienic. Of course, I could be so bothered by dirty, waxy ears that I have them amputated, but in that case everyone would recognize that those structures have specific functions, and their removal would be simply unacceptable.
The hygiene issue is simple: once the skin naturally detaches from the glans (it's supposed to be attached until it's ready, and not forced back) teach them to pull it back, rinse it off and put it back where it was.
The cancer risk is miniscule. You wouldn't advocate routine neonatal preemptive mastectomy simply to avoid a possible future breast cancer, would you?