I am a progressive who criticizes the Clinton Administration regularly ( illiciting amusing statist democratic responses painting me as a right winger at times). North Korea didn't even have a real nuclear program until Clinton "negotiated a deal" with them that was the start of their secret underground nuclear weapons development efforts. I fault every President since and including Clinton for allowing North Korea to go unchecked on this issue, and I fault the current President for not having done anything thus far to stop them either. What more do you want?
OK, Trump IS attempting to set this meeting up. If KIM rejects any deal-making regarding getting rid of his nukes, then that's on Kim.