Kicking new players from dungeons

I had to vote four no four times within one dungeon this morning.The reason? We had a level 53 demon hunter that was lacking a little on the damage and some of the tactics. Things went smootly, but he was just doing a bit bad damage and seemed a bit confused on the tactics some few times. Not a single wipe.The guy who initiated the kick said he did not have time for some low dps in the group, that was the reason he wanted to kick him.I took a quick look at his achivement points, 550 in total. He started playing World of Warcraft last week.I told the group that this player seemed new to the game and it would be worng to kick him for doing a little bad damage. They did not care at all. Two more votes came after that.​There is new players coming to World of Warcraft, they might be younger then the game itself. This is a massive game. Give out some tips, ask if there is something they wonder about. Help them a little instead of kicking them out of the group for trying to learn the game.