I wonder how these people would've turned out if they weren't taught to speak like this

Besides the fact that Sir Ian McKellen has narrated this video, there's a major point to be noted here - you hear such words coming from people every day and you can't help but judge them. Would it be better if you stop it the next time you see them or they should always live in disguise - thinking that it's all okay? Choose the first option and help them.