While its perfectly true a host is not required to accept any player for any reason, its their lobby after all, this does not make abuse acceptable. As was covered in this thread: http://forums.demigodthegame.com/424225
No one can have a problem with a host saying to a noob something like "Sorry, no noobs in this game, please start noob lobby". However, that is very different to joining an existing lobby, spotting a new player, and instantly launching into a vulgar and abusive tirade against them insisting they must be kicked, and this is exactly the behavior I have seen from this player. Which quite obviously, is unacceptable.
Indeed, being a new player is kinda irreverent here. The problem is that this player cannot help themselves from being abusive, and is to just about everyone apart from the small handful of players that still tolerate him. My suggesting to any player, new or old is to ignore the abuse, other than to take a screenshot of it. Then when you have a good sample, which won't take long, email it to support@stardock.com