Woah hold your chocobos. I don't know what you are thinking but the world does not revolve around you.

The reason behind why there are JP Only is because they want to make sure that EVERYONE in the party can and able to speak/understand Japanese for mechanics explanation and coordination.

Can you imagine yourself in a party where the other 7 players speak french for example you know nothing of that language?

YOU ARE A LIABILITY!

I'm sorry but no Japanese i know of would want to carry you in the current raid window.

So it's either you pick up Japanese language make an effort to integrate or you find another "Eng" server in the JP DC.