Do you feel anyone who's blaming the Reagan policies is claiming we shouldn't do anything about today? Are you suggesting they're all pining for time machines? In fact I'll go further and ask this do you really think you can address the problems of today without understanding how they began? How can you even approach economic policy reform without looking back and understanding what went wrong?
Also there's a long long history in our world of horrible evil brutal leaders being popular at the time. So I don't think we need to go into that absurd argument any further.