I’m a linguist by education. Questions about “wrong” pronunciations or grammar are nails on a chalkboard to me. Language changes over time; there’s no stopping it, and people have been complaining about it for millennia (see the Appendix Probi, which ranted about changes in Latin that eventually became standard in Western Romance).
There’s an old saw that “a language is a dialect with an army and a navy”. It is also said that “today’s dialects are tomorrow’s languages”. If it helps, think of nonstandard constructions and pronunciations as a sort of sociolinguistic X-Men—they’re the trend that’s coming.