flange stuck sink pipe

I tried using this tool I got at Homedepot to unscrew the drain but it just broke of the t in the middle. I then tried to hammer the rest off and it took the top off and left the flange. Is there any way I can take the rest out to replace without taking the whole tub out? I added a pic of how...

Good morning/afternoon/evening, In trying to install a new faucet we have encountered a stuck flange and cannot remove the old (1991) drain pipe. We are using a socket wrench with various materials around the socket (electrical tape, non-slip rubber can opener grips, and even sunk a socket...