It's totally reasonable to be skeptical of media narratives, I don't fault you for that at all. We have all of the reason in the world not to take their word at face value. In this specific example however I can tell you that the corrupting effect of cultural marxism impacting the military is unfortunately real from first hand experience. It was less of a problem in the infantry than in other places but even there we still had a couple of meetings about muh white supremacy/right wing extremism (shortly after Jan 6th) and dealt with diversity nonsense.

However it should be noted that big army (and big military in general) is often run differently than SOF and so they may deal with less of that nonsense. Though even then one of the guys I knew from basic who ended up going SF said that he was serving alongside an actual tranny. So who knows.

I think that to some extent it's probably overestimated how big of a problem it is but it would be incorrect to think that it can be written off as some fake psyop.