Except you're assuming a few things. 1: My current job is still here, and that it is better than going to Omni.
2. My qualifications make me competitive for everywhere else.
3. Someone other than Omni has called me to interview.

While it's discouraging that the negotiations are a struggle, my current employment is actually not a viable option. I'll need new employment soon. Soon, in this instance, is preferably before January, 2018.
Many carriers are hiring in several distinct sectors of aviation, and I have applications in to 8 of them. All of which I feel competitive with (given my experience and employment background, among other factors).
Omni is one of 2 to call me for an interview. The other company to call is much, much worse than Omni and would be a step backwards (career wise).

In short, my current employer is not scheduling me time off. I've had 18 scheduled days off since June of 2017. I don't work every day, but I'm on call. QOL is almost 0.
My current employer will not give me a second raise or any bonus.
My current employer is not acquiring any new equipment or hiring anyone to help with staffing.
My current employer has eliminated health insurance options and now I pay my own way.

That's a good picture of where I work now, but not extensive or all inclusive. Until some of the top dogs call, this is my best shot at something better. Believe it or not, pay will be close to what I'm making now (excluding per diem at Omni).