Our building is hiring part-timers for 22$ hrs without bumping the rest of the building people have worked there for 3 years without a raise making 15$
this is so *ed
Got some news for ya, bud, they don't give a

.
Short story: When I started on the preload in 2012 I made $8/hr (maybe $8.50, memory's a bit hazy). I made the jump to 22.4 last year, and my PT payrate was $16 and some change. The new guys, though? The ones coming in an loading 1 or two trucks while I got my ass worked over with a minimum 4 every day for nearly a decade? Yeah, they came in making $14/hr. My 8-9 years only entitled me to $2/hr more than a new hire.
That was actually one of my main motivators for getting the hell off the preload.
As far as your complaint goes, I'm 100% sympathetic. I agree with you and think that, if starting rates are increased, existing employees should have their pay rates adjusted to reflect those increases. That's just not how it works, though-- they're looking to bring people in, they don't give a damn about retaining the people they already have.
*Also, people working there for 3 years should've at least gotten a raise once per year. If they've been at the same payrate for 3 years. you guys need to bring this up with a steward and then your BA if the steward's unwilling to press the issue.