韓国軽視論←韓国人の参加、大歓迎

Excuse me.
I think it's probably better for you to use ROMA-JI instead of EIGO.

And if my memory is correct, we shouldn't say "you make (made) a mistake" in that case. It rather sounds offensive, I think.

如何なものでしょうか。横から失礼しました。