それは越権行為だ。の英語

You are acting beyond your position.

You are abusing your authority.

That is troublesome behavior.

It is nothing less than an invasion.

That's just a cheap publicity stunt.

That's beside the point.

That is beside the point.

This is a clear [flagrant] breach of faith.

It is an immoral action.

That is a studied insult.

I am innocent of the charge.

This is a bad quality copy.

That's forcing things.

exceed one's authority

It is outside our jurisdiction.

it was a perversion of justice

Those words are mere diplomatic niceties.

It is an act of folly.

It is still immoral.

That is out of the question.

That's out of the question.

That action is just like you.

That is an action that you would do.

That's quite absurd.

That is quite absurd.

That is an extreme prejudice.

That is a horrible bias.

That is a stupid mistake.

That is simply violence.

That is sheer violence.