Who said I am insisting? I am saying I just at least want people to understand why it can be seen as illogical. There are exceptions all over the English language, and I think we all agree the language evolves.
A Soanish speaking person not formally taught English might say, “I don’t have no chocolate in my house.” We know what he means, but the double negative is technically wrong. In Spanish double negative is correct, so if he doesn’t know the rules for English the mistake easily is made trying to directly translate what he is trying to say. Whole communities can wind up speaking like that and a dialect develops. If they want to get a job eventually at a c-level job at a Fortune 500 company, they are going to have to learn what the standard is. They can still speak their dialect in their house, community, with family, doesn’t matter to me, I just prefer people know the common rules and the basics of the language. Not the new immigrant, I could care less if they ever speak English, except that I don’t want them to be limited in their opportunity, but children born and raised here should be aware of the basic rules and a basic understanding of standard English.
We are extremely lucky in America that the language we grow up with is what most of the world speaks as a second language, if not first. Communicating with people in business who speak English as a second language is much easier if everyone is using close to the book taught way, because those ESL tend to learn a lot of their English from books.
My own abilities in the English language are lacking, I wish I had better knowledge of the grammar rules and a broader vocabulary. I want to be corrected and shown where I can improve. Not simple typos on the internet where we use abbreviations, type in phones on mini screens, and it is difficult to edit, but when it is obvious I have used a word incorrectly I want to know. I don’t want to just say, “well where I live we say it that way,” I want to know how people say it, whatever it is, in different regions. You have demonstrated irregardless should be ok according to what you have researched, I am only saying it is valid to say it is an oddity, even though we do have other oddities in the language.
Communication is best when the two people conversing speak the same language whether it be a dialect or what is taught in school.