I have no ill will towards new players, I hate to see them "tossed to the wolves" and put into lobbies they have no business in, because it sucks the fun out for them, and the other players in the lobby. The team with the new player will have a greater chance at losing, which is to be expected, but people aren't going to take an easier loss well, be they new or not.
Ideally, I would love to try and act as a model player around new ones, be they on my team or the other one. And I try to win even if the odds are against us. I want as many people playing this game as possible, the last thing I want to do is drive off new players by spawn camping them or splatting them 10 times in a match. This can be hard to achieve though. Say if I am pitted against an all 60+ team, and I have a level 5 on mine, I and my other experienced teammates will have a tougher time covering for the new player and allowing them a fair match. Very few players will ease back against a new player, and I can't blame them really.
Even more ideal would be if the game's matchmaking tried to find lower level lobbies for newer players. It may try, but understandably there isn't an influx of low level players in the game at the moment, and no doubt a good number of low levels may be alt accounts, meaning actual new players may not be safe from skilled ones no matter what. Multiplayer games are sadly not newbie friendly months after launch, and the player base for this game has only shrunk, and mostly experienced players are left playing regularly.