I hate accusations of flip floping in politics... Trump absolutely is an unreliable asshole but it is reasonable and good for people's views on different topics to evolve following receiving new information.
There’s a big difference between an evolving view and just saying whatever you think the people in front of you want to hear and pretending you’ve always thought that.
But we aren’t talking about “people”, we are specifically talking about Trump. Trump didn’t “evolve”, he’s a swindler who will say whatever to whoever when it benefits him.
So let’s not take normal people finding out more info on a topic and pretend like that has anything to do with nonsense he happened to say one day or another.
In general, I agree. But if someone is saying different things every other week, going back and forth, it shows that they really have no stance. Flip flopping isn't evolving your understanding, it's constantly changing your "view" to appeal to whatever crowd you're in front of.