Deportations are nothing new. One can look up the exact numbers, but there is speculation Obama deported more that Trump in his first term. It does seem like Biden might have been thinking about it but fell asleep. I'm thinking there is a possibility that Trump will start out strong on the issue, and much like his other promises will peter out quickly, just like his lame attempt to build the medieval wall. There will be legal challenges. The ACLU says they've been preparing for this possibility for over a year. Trump may have the courts in his back pocket but it will at least clog things up in the system.
To deport such a large part of the work force just doesn't make good business sense (or any other good sense) and is also probably bad for golf course maintenance.