Recruiter here. Some may not like this answer, but: honesty is the best policy. Bluffing, or LYING, could backfire - especially if things escalate and they eventually learn about this.

It's bullshit, especially for those who began their careers during a time of salary deflation.

However, the right employer will NOT base your future salary solely on your current. It should simply be one data point in the process - your value as an employee should be based on a multitude of factors. This isn't pie in the sky; many of my clients do have a compensation system for employees and end up paying fairly.