A bit confusing. Are you saying, “If you defined the object correctly then you are still wrong”?
All deliberate actions that are the means to directly kill an innocent human being are inherently evil and morally impermissible. The absence of an evil intention does not make good what is inherently evil.
Here’s the instruction from the Catechism on the use of the word “direct” as the word relates to the human act of abortion.
2271 Direct abortion, that is to say, abortion willed either as an end or a means, is gravely contrary to the moral law:
Substitute “killing” for “abortion” and
Direct killing, that is to say, killing willed either as an end or a means, is gravely contrary to the moral law:
I use the word “direct” in the same sense as the Catechism. You cannot deny that “throwing the switch” is the means of the innocent person’s death. And the act of “throwing the switch” is deliberate which is to say that the act is willed.
Yes it is true. Please read VS p. 80. All homicides are inherently evil.
The Second Vatican Council itself, in discussing the respect due to the human person, gives a number of examples of such acts [inherently evil]: "Whatever is hostile to life itself, such as any kind of homicide, genocide, abortion, euthanasia …