I believe I myself have made this point (or part of it). The "why does everyone sound different?" can be explained, by the smart a** Pentecostal anyway, as "Because they're all speaking different African languages!" The better part to focus on is that the languages have no relationship whatsoever with what language is. There is no grammar, no syntax, no vocabulary. I can also attest that a person who is faking tongues can also have their tongues "interpreted" in a church, as if genuine. They have no discernment.
Nor do they have any Scriptural basis because there is no Scripture which supports the claims that are made about it today.
It’s all just about experience and the have’s then resort to condemning the have not’s as being unspiritual and not wanting all that God has for us.
There is a tremendous spirit of judgment and condemnation involved from the have’s, who of course, are so much more spiritual than everyone else.