Yes. No-one should ever perform any kind of surgery on another person without their consent without a medical reason. If an adult man wants to be circumcised for whatever reason that's up to him, but to take a tiny vulnerable person and hurt them like that when they can't possibly understand what's going on is dreadful.
People talk about "painless" methods of circumcision that don't involve any cutting, but actually there is no such thing. If you're considering having your son circumcised, have a look at one of the many videos online of the procedure being done and you will get a better idea of what actually happens. Every type of circumcision involves cutting, even the plastibell method where the foreskin is stretched over a ring to rot until it falls off. Even just being strapped down for the procedure, spread-eagled, the opposite of the swaddling babies find so comforting, is distressing to the baby, not to mention the procedure itself. They are not properly anaethnetised (if at all) because strong anaesthetics are dangerous to use on babies that young. They bleed and they scream.
And then there's the risk of infection. It's estimated that in the USA every year 117 otherwise healthy babies die as the result of circumcision from infection, shock, blood loss or botched surgery. Why would you take that risk?
http://www.circumstitions.com/death.html
I really don't understand when people say a baby should be circumcised "so he'll look like Daddy." How often in life do sons and their fathers get their penises out and compare them? If as a child he asks why his looks different from his dad's you can just explain. No biggie.