Trump - (paraphased) Muslims are evil, they should be registered and have special restrictions placed on them.
He singled out a single religious group. Made them the target of a group of people that are disposed to hating them. It goes against the very spirit of modern western democracy. To many it represents a clear and unforseen threat to our country. Even Bush who was clearly the most aggressive of the recent presidents in dealing with Muslim states, stopped WAY short of that. Clinton has clearly not singled out any one group, clearly tried to bring more people together. To compare the two is blatantly overlooking the clear differences in Trump's campaign and nearly every other one in recent history.