Sorry if I expressed myself wrong, english is not my native language and I am missing zoo-technical terminology. I was attempting to tell that it does not make sense AFAIK to get a cow pregnant more often then it is natural
That doesn't seem like a reasonable belief (without source) for two reasons:
1 - AFAIK, the natural process doesn't favor milk production above all else
2 - There has to be a reason artificial insemination is used. It _might_ be for higher veal production, as you imply, but I always thought this was a secondary aspect of the milk industry.
Also, in your original point, you argued that "there is no rape involved, if is artificial inseminated then it is a medical procedure".
If you want to argue that applying terms like "murder", "cruelty" and "rape" to animal husbandry isn't legitimate, fine. But let's be clear, medical procedures _have_ been used [probably since the beginning of medical history] to rape.
https://en.m.wikipedia.org/wiki/Dairy_cattle#Animal_welfare
Artificial insemination isn’t rape. Keeping them confined isn’t slavery. Slaughtering them to eat them unnecessarily isn’t murder.