If this were in Japan, someone like him would immediately be attacked by the mass media and taken off the stage.
こんにちは！
ご質問ありがとうございます。
"If this were in Japan,"＝「これが日本であれば、」
"someone like him would immediately be attacked by the mass media"＝「彼のような人はすぐマスコミに攻撃される」
"and taken off the stage."＝「そして舞台から降ろされるだろう。」
ご参考になると幸いです。
アメリカ合衆国 
