"So you want to take our rights to negotiate pay?"
No, you can negotiate. The employer just shouldn't make an offer on the assumption ypu won't take leave that is guaranteed to you in labour legislation.
"We pay about 15% more than average with the expectation that you will be dependable rather than lazy and/or unavailable."
I am dependable, productive and available during office hours or any time on an on-call rotation, except when I take my planned leave.
At 15%, your employer is really over-paying, and probably actually getting less productivity than if employees took their full leave.
"Not being able to take time off is a trade-off I'm willing to make for what I'm paid. You are demanding laws that take our rights."
Alternatively, it's protecting people like me from being abused by people like you who seem to not care about anything but work and money, and who believe that anyone who doesn't work more than 3200 hours a year is "lazy".