First sentence: it is about other countries living up to their pledge to contribute to the NATO budget. The NATO budget wasn’t increased by 100billion. You can mischaracterize if it makes you feel better, but I don’t remember NATO getting into a war since Clinton was President.
Second sentence: it is absolutely about the US not having to spend its own money to make up for the other members’ failure to live up to their pledges.
Third sentence: maybe yes, maybe no, but at least the US can redirect money that they weren’t supposed to spend on NATO to other uses that are more suited to our own interests.