Yeah probably simplistic. My point was that the marxist use is different. I don't care about the common use in liberal spaces anyway, there's a very clear different usage in socialist spaces in the perjorative and that usage is best described as an equivalent to "lib-brained".

I'm not really the one "diluting" the word here. Engels and Marx used it this way to attack other socialists all the time, you can find it in exactly the same usage in Lenin and Rosa's period too so it sustained the same use for over a century. It is absolutely not some new thing.