John Kerry: “James Baker said that New START is an important part of our efforts to strengthen the nonproliferation regime.”

In terms of global challenges and U.S. interests, yes.

The only way to achieve that goal is by coming together in a multinational basis.

Would not it make a lot more sense if we were avoiding that damage in the first place, or minimizing it?

The reason that happened, my friend, is because Donald Trump pulled out of that agreement.