It would be a tough sell, but all they need to stop and think about is the benefits after they reach the max amount of terms they can be elected. A well compensated lifetime paycheck while still being young enough to work in the private sector as consultant or whatever.Hard to imagine that McConnell and the rest of the "lifer" politicians are going to vote themselves out of a job. Lol.
That's how to sell it. Point out the incredible benefits of term limits and the other doors which it could open for them. That's how I would approach it. Turn the discussion into a positive one instead of focusing on the negative aspect of losing a job.