Why can't the delusional Rafa fans like Mandy accept that Federer is the BEST EVER to pick up a tennis racquet?

I can't believe it's getting to the point that individuals are getting picked on for THEIR opinions! Seriously why do you care so much about what this Mandy girl thinks or the Rafa fans think??? Everyone is entitled to their own opinion and there's absolutely nothing you can do about it. To me Sampras was the first to have the most slams and I just liked him better as a person, so to me Sampras is the best.