Pulaski and Riker clone killing ethical?

[Nakita Akita]

In regards to the killing of the clones of Pulaski and Riker during episode "Up the Long Ladder", was that an ethical act? Did they have the right to terminate them?

(Riker, La Forge and Pulaski beam straight in, and find adult-sized replicas of themselves in cloning tubes. With Kate's consent, Riker phasers them out of existence)
GRANGER: Stop! Murderers!
RIKER: Like hell! You're a damn thief!
PULASKI: Gentlemen, please.

"Killing your own clone is still murder." according to Odo in episode "A Man Alone"

I think when they killed their clones, the law about killing your own clone hadn't been enacted yet.
I think part of the reason that the law was even brought up was because ol' Milk Toast Dr. Crusher came back and was shocked and appalled at what those two crazy rogues had done. Yep, pretty sure it's canon someplace

 

[Longinus]

I always considered this to be one of the big morality fail episodes of TNG (the other being 'Homeward'.) They were killing almost fully-formed humans. It may not be exactly as bad as killing active, fully conscious humans, but it certainly is far from OK.

And the abortion analogue is bogus. A woman has the right to abort the foetus residing in her body because of bodily autonomy. To be blunt, they've a right to get rid of 'a parasite' in their body. If we had artificial wombs where foetuses could grow without directly needing to co-opt someones body, then it certainly would not be OK for the parent to abort such a foetus.