You have a good point.
That's what I get when I edit to add a word in later. 'Kindhearted' was intended to qualify 'immunization'.
On the other hand we do neuter ourselves (some forms of birth control can be considered neutering with different levels of reversibility), but the difference is that it happens with consent and is voluntary.
For the 'social problem' of strays neutering is an acceptable compromise struck between the dog lover and dog hater groups.
I would rather have a stray neutered rather than killed in a kill shelter or worse, stoned on the streets to death. The latter is not uncommon in a few states in my country.
You might be interested in the fact that in India dolphins have some of the human like legal rights. Definitely some progress. Not sure if Orcas would come under the folds of the same law. I dont think Orcas are to be found in Indian territorial waters.