getting kicked from end game pfs as soon as I join?

[Yeol]

Getting kicked from PF might be because of many reasons.
1- They have enough melees. Party leader did not update the jobs after people started joining.
2- Duplicated jobs. Maybe a SAM have already joined but switched to another job while waiting for party to fill.
3- They are waiting for a friend. Someone in the party might have told the leader that their friend is joining.
4- Bad reputation with one of party members. Maybe someone asked the leader to kick you. Bad reputation can either be personal or general (Aka; low dps, a lot of mistakes etc...).
5- They don't want SAM in their party. It can be that they already have a BLM and don't want another selfish dps to join, but PF leader did not update job list.
6- No SAM/BLM party. I say this because there are people who are willing to accept any job in the game except these two. Mainly because it is hard to find people who play these jobs that can pull their weight. They would rather have any other job that is useful to the party, even if their dps was on the lower end.
7- You joined the wrong party. It happens. "Kill for a friend" can mean that the leader is looking for people who have cleared it already, not people who are joining to clear it with his friend.

The unpleasant part of the ffxiv community is very present in raid content.

I personally don't think that raiding scene is as bad as people make it seem.