Well, in this case, I think before you say the company is not fair to you, you should reconsider yourself. I do not claim that you do not do well or do not complete the assigned work, but evaluate fairly and objectively to find out the cause. I believe the company does that for a reason, maybe new people have better knowledge, do better work, or they know how to please their superiors more than you...Or the company is looking to replace you with more enthusiastic young people, and they don't want to fire you, they want you to resign yourself.
The thing is that, the company itself has a very high turnover rate. I was informed that even the seniors that joined before me left within after 1- 2 years. Also faced the same thing.
Empty promises.
I have been in the position and I totally get what both of you mean. Actually, most companies don't care about their stuff and what they need and like are only cheap labours, no matter what kind of job you are taking. In a sense, almost everyone is replacable in a company, especially in a big one. We have to realize this before we can get a big picture or make any decision. The capable and so called loyal employees are never scarce because nobody wants to change jobs if they get well paid and excell in their position. But the question is, does your company wants to make this happen ? Or what is the intention of company decision maker ? I have been in numerous companies, whether it's small, medium or large, and I found that only the small circle around the boss or owner is stable, the rest are in constant changing due to the company's needs. If the employees are paid fairly well, that will be OK as money can make up a lot of things in workplace but the problem is the most companies are trying to rip off their employees so the conflict between is extremely hostile and that's why turnover rate is high in many places. In economic conditions like this, a lot more companies are struggling and a lot more capable employees are forced to resign due to the unfair payment and empty promises.