Instead of normalising the undesirable behaviour, the message needs to marginalise it.

与其将不良行为正常化，还不如利用信息将其边缘化。

youdao

The federalists long to split us from such allies and marginalise us as Europhobes.

ECONOMIST: European politics

Mopping up efforts, to win back some rebels and marginalise the rest, would continue for quite a while.

BBC: Fright night for the government?

He is the favourite to win - and some believe his victory would lead to efforts to marginalise the fundamentalists.

BBC: Tussle for the top