Correct, I believe it is immoral to try and compel speech. They are free to call it or think it is whatever they want.
That doesn't change the actual meaning and definition of said economic system.
Why would you have to persuade normies on what capitalism is? I guess we run in different circles, lol. I can't say I have ever had someone dispute what capitalism is. The dispute ALWAYS is that they think the west, in particular UK and US, is a capitalist system.
That is their mistake, not what the system actually is.
Anyway, nice chat, peace.