In this situation , is it best to go out on a works night our or not?

Started a new job 3 months ago and I have been invited out a few times. I didn't want to go but went anyway to try to fit in more.

But I was horrified by how they were really nasty and mean about other people in the office. Some of the women told elaborate stories about colleagues , which I don't know if they're true or not. It was a character assassination really. They mocked and ridiculed people in the office for their appearance.

This is not the sort of association I want to be involved in. It's so toxic. I've been invited out again, but don't know if I should go just to fit in there , or decline and make an excuse. What's the best thing to do?

In this situation , is it best to go out on a works night our or not?
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