Yes, the problem is that sterilization of wanderers is not the solution.
1st While you sterilize one fucks, ten others have given birth to five puppies.
2nd Sterilized animals stay outdoors, spread the infection, show aggression, loathe, after all.
Three Sterilization is more expensive than shooting.
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What do white people do?
Hunting, keeping during a number of days specified by the regulations and sleeping in the absence of those willing to take on the role of the host and pay for vaccinations and other drinks. This is necessary so that all domestic animals are not accidentally threatened, in pursuit of a quarterly plan.
I am not against removing life from the streets by lethal methods. I am against the goodwill of giving the dog a snack with poison, and then watching over the next day from the window for the dog to ride on the lawn, scratch and water everything around with mouth foam and cow diarrhea.