He's right of course. Look at the enormous compromises he has made in name of peace.
The OP title is a lie. President Obama is not "radical". I wish he were. He is sensible and thoughtful, able to weigh all sides yet still able to do the very best for his country.
Something Repubs have consistently refused to do - That is, when they bother to do anything at all except vote themselves higher pay, vote against jobs, against our vets, against women and children, FOR more health care coverage for us to pay for while denying us the same. AND vote for Iran to have any fucking nuke they want. Oh and then they take more vacation.