Bollywood was doing great before SRK and will be doing great after him too. I can understand fan girls sentiment though.
Shah globalized Bollywood in the way noone did. That's not even a Fangirl statement or whatever you call it. Its a basic fact lol. I can say in atleast 17 odd countries I've visited the only name they knew when I brought up Bolly was Shah. And in some parts Amitabh. The entire NRI movement and global Bolly movement if I can call it that was a very specific to Shah. At one point he was a more known face than Tom Cruise. Its foolish to even deny his impact on Bolly.
0