What you are doing is “Idealism” literally in your response. Here, I’ll help you out, because you seem to be confused.

Idealism is a philosophical approach that prioritizes mind, spirit, or consciousness as the primary reality, asserting that material things exist only as perceptions or mental constructs

You asserted that “people are just that way”. You are an Idealist. You think that these people come to these beliefs first through their mind. Not through their lived experiences.

I think you are confusing “Idealism” with someone being “idealistic”. Because your response really sounds like you have no idea what I was talking about.