What do you think about me kicking mobile players out of my Xbox and PC Fortnite parties?
I'm not sure, why do you want to kick them off?
Because they ruined my PC/Xbox experience.
It can be annoying when it can interfere with your game experience but it is more fun to play with more people. People will not want to play with you in the future if you are mean to others who want to play with you.
Well, I can't care about that.
If they're truly being disruptive, then kicking them off isn't a bad idea, but you'll probably have a better time playing if people want to play with you.