If the end is here, why not speak just one language as stated in the fall of Babel.?

Because that was just a "folk story" as are many of the stories in the Bible. Ancient people made up their own explanations for things that they not understand....kinda like Donald Trump.

Romanization

https://en.wikipedia.org/wiki/Romanization

You're not going to trick me into learning Esperanto.

in his time, babel was an economical metropolis and a lot of people came there to find jobs.

They came from all around the countries nearby. And each one spoke a different language.

Thats it

no

I say we build another tower! With modern materials! Bigger, Stronger, Taller... Oh wait, we have. Hundreds if not thousands of times...

We are always at an end.

We are at the final end of all the time that has ever occurred, and at the starting end of all the time yet to come.

Scientists tried that with a language they invented called Esperanto. It was a massive failure.

Unless of course it is a great big atheist world