My thoughts are we should worry more about our closeness to our Lord and our spiritual hygiene so as to not be deceived as Christ warns us.
But most important we should be witnessing to the world to spread salvation.
Talk of prophecy is best done in the company of mature Christians and with a very cautious approach, not seeking to find dates or use such study to avoid engaging in the world.
It was a Christian I worked with talking about the end times that played a BIG role in my coming to Christ.
I don’t discount in the least its usefulness in spreading the gospel.
Most non-Christians have heard of the end times and don’t really know much about it. If they have questions, it behooves Christians to be ready with an answer for them.
It’s ok to discuss Islam and not allow it in your borders.
Jesus talked prophecy a lot. Problem with churches now is they don’t say anything about it.