What is the ruling on accepting an invitation to attend a wedding ceremony, knowing that it includes wrongdoings?

Question:
A questioner says: If a relative invites me and my family to a wedding ceremony, and this ceremony includes singing, as well as free mixing between men and women, and photography with cameras, the question is: Do I attend this ceremony? Because if I boycott it, this neighbor will be angry with me. For the record, if I attend, I am unable to change anything.

Answer:
It is not permissible for you to attend a ceremony that includes photography, songs, and music. This is not permissible because these are wrongdoings, and you are unable to change them, whether in a wedding or otherwise. If there is a gathering for an occasion that includes wrongdoings, and you are unable to change them, do not go to it.
Which is lighter: the anger of your companion or the anger of Allah (Glorified and Exalted is He)? Allah becomes angry at these sins, so you must fear Him. You do not know the extent of Allah's anger, nor do you know the extent of your companion's anger. Do not fear the blame of any blamer for the sake of Allah. If people acted on this, the corrupters would be deterred, and these people would be deterred from their deviation. But if we encourage them and go to them and say, "We do not want to find a way out, and we do not want to anger our relatives, or anything like that," this is not permissible. This is compromising, and it is not permissible. But if the Muslims supported one another and boycotted these parties, these people would be deterred, they would leave them, and they would feel ashamed. Yes.