While I absolutely hate to say this, it's the unfortunate truth... In the present situation one can only turn down new T&Cs either if they don't care about being employed or not or if they just don't realise how easily can they be replaced. While this will not last eternity, it will be a good couple of years before we're in a position to bargain again. That's just how supply and demand works. When you're in high demand, you can bargain for better T&Cs or just go elsewhere if not happy. In times like that, you either agree to whatever is thrown your way or you get kicked out and replaced by someone more agreeable. And then, when the market turns over again, you are no longer current and of limited interest to the ones who offer decent deals.