Who likes what Obama/Hillary did in Libya and Sirya? Is there anyone who’s actually willing to say in public:“Oh yeay, Obama and friends handled those issues masterfully, those countries are in a much better situation now than they were 8 years ago” ? It was a clusterfuck that left two countries in a total mess and created the whole migrant crisis for the Eu. It’s not a matter of “IF you don’t like what O&C did”; NO ONE should give any support to what the Usa did in Libya and Sirya.
With that in mind, the odds that Trump will handle the NK issue in a worse way are next to 0. NK is a timebomb because it is bound to run out of money and resources, and when that happens their only solution will be the use of force. Like any respectable socialist/communist regime, all the money is funnelled into the army in order to keep the generals loyal to the leader and avoid a revolution, while the population is basically starved. It’s only a matter of how many people in the army would be 100% behind him in case of war; if enough chicken out/betray him, then the whole regime may simply collapse.
Acting against NK is necessary, while Libya and Sirya were not. People may dislike Gaddafi and Assad, but those countries posed no threat to others. You don’t topple governments because the leader doesn’t want to give you cheap oil, you do it when a country is running out of food and has nuclear weapons.