I'm turning into my Grandfather.../smile
Your fundamental point is spot on - the left absolutely does use language to subvert culture and ultimately erode our basic freedoms.
So “transphobia” -———> communism, yeah, I can buy into that.
So “unviable tissue mass” -————> communism, same deal, along with scores of other games the left plays with words.
But “decimate” —————> communism - that one doesn’t really worry me.
However, I will agree with those who would prefer “devastate” or “obliterate” as much better terms - and not because that would make me any less of a tool (no offense taken).