Yes, language is evolving, and dictionaries are descriptive, not prescriptive. But the idea that you can use words in whichever way you want, and any misunderstanding is the listener's problem, is just shitting at the idea of communication, and nothing but a thinly veiled power grab.
The reality is that when you're in power, you can use words in whichever way you want. This is what power means. Only now has is become so obvious that people can't help but notice.
Without strict controls over who is and isn’t allowed in our culture we’re left with a “at your feet or at your throat” predicament. Subversive individuals are death to a culture (the thing Popper was referring to in the paradox of tolerance - you have to draw the line at life or death, not simply because you disagree). Trust is everything.
Popper was an idiot and his "Paradox Of Tolerance" can only lead to tolerance becoming the only permissible value and therefore decline, since tolerance is the absence of values. His university colleagues held him in such disregard that they threatened to quit unless he was cast out. Truly the patron saint of midwits and leftist.
It's a topic very dear to our hairy little monkey hearts.