Not sure what you mean. I'm just saying that obviously if Ukraine joined Nato, they would get (even more) missiles. The US has been arming Ukraine for a long time already, to the tune of hundreds of millions every year.
Trump's first impeachment was related exactly to this.
Russia could have asked for this guarantee if it really cared about, it wasn't even a topic of discussion.
Ukraine had nukes and gave them up. Nukes in Ukraine would be such a ridiculous topic that Putin didn't even dare to bring up.