Your use of "bully" is a red herring to your argument. Both people break norms, yes. But when you "bully" the fat cats in government, that's called "doing your job."

The president is essentially the highest-paid public servant. It is (supposed to be) the president's job to fight for what the people want.

Trump is fighting for himself. He's fighting for big business. He's fighting for exactly his own self interest. That is anathema to what FDR did. Thus, Trump is a bully and FDR is not, and that is why your opinion is being downvoted.