This bill sounds like it does some good things. What nasty surprises came with it?
And even if you didn't derive your work from theirs, you still have a problem with prior art.
First to file only means that, if you filed for a patent on some thing after someone else who also filed to patent it, you definitely don't get the patent (in a first-to-invent system, whichever of you can show the oldest documentation of invention gets the patent).
The patent system has never protected inventors that do not attempt to patent their invention.