Yes, there are well behaved toms. I would totally cull the mean one. And his sons...how is your hen's attitude BTW?
Next year, put an unrelated tom over what you keep over the winter if you can get one. IMO, even a good example of the breed that is hatchery stock might be better than breeding son back to mom. You get the good with the bad when you inbreed, including that nasty attitude.
And, once you have backcrossed to a parent or whatnot all those traits, both good and bad will be much harder to breed back out of the flock.
The poults should still be healthy for quite a few generations even if you do inbreed but I have found it washes out the red color to orange if there is a lot of generations of it going on.
Hope this helps.