Yes. Definitely. The whole premise was militantly antagonistic at the outset. Alzheimer's isn't funny.
Every time W. F. pulls out, it's a good decision.
But seriously, I doubt the movie would be any good or be very lucrative. Tons of insensitive movies are good and make money, but this premise is not even interesting.
There are far better ways to disparage Ronald Reagan that don't involve making fun of one of the most horrible things ever.
Not really sure if he can pull of Reagan maybe he should do a Bush Jr instead