What is the ruling on some Muslims advertising a Christmas event that will be held by a church?

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Check below answers in case you are looking for other related questions:
Is it permissible for him to give his Christian classmate a ride to the church in hopes of softening his heart towards Islam?
Is it permissible for him to sell gifts that have to do with kaafir festivals?

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Ruling on opening one’s business on the day of kaafir festivals
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Is it permissible for him to give his Christian classmate a ride to the church in hopes of softening his heart towards Islam?
Is it permissible for him to sell gifts that have to do with kaafir festivals?

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