I've heard from more than a few academics that, for the sake of professional advancement, they must not use terms like "capitalism", "Marxism" or "socialism" and instead have to describe these ohenomena without referencing the known terms, language or jargon of each.

if you use the bad words, you're a leftist crank. if you don't use them, but describe them exactly and make your critiques, it's all good and your work will be endorsed by your institution and colleagues.

welcome to Freedom's Laboratory, baby.