no, US has many reasons to keep NATO running (presence on half of the world, military bases, influence, power projection). It's not like Trump will say "FU" to other NATO countries and just leave. He just wants the participant countries to fulfill the 2% GDP spending on army, which is reasonable. If you country is already spending 2% or more, you're safe, if not, it does not have to spend 2% right away, it just has to have a plan when it will reach the required spending.
Also recent events in the world (russo-ukraine war, north korea threats and involvement, tensions between china and taiwan, war between israel and iran-backed houthi and hezbollah) already makes all countries to spend more of their GDP on army. 2% should be easily achievable for rich western european countries, even without trump/us pressure on them.
Don't worry, nato won't cease to exist. IMO people are over-reacting to the election results...
(also i won't discuss politics anymore in this topic, because I know it will probably make you and/or me upset, and will not change our political view, i don't even want to. I just wish people would chill more).