The players gonna play, and the haters gonna hate. Ignore the people who say such bullshit, and you'll remember me. There's no reason to talk seriously for this subject if your interlocutor hasn't spent at least 100 hours to study it. It wasn't dead, isn't dead, and won't die. It's needed. If it was dead, it'd cease to exist; no blocks every 10 minutes, no merchants accepting it, no people talking about it.
What happens is that the increase in the communication channels that we have seen during the last decades has made it so that now people that are completely uninformed about a particular topic still decide to share their opinions as if they know anything about it.
And while that is bad enough as not only they share their opinion with everyone that is willing to listen to them, they actually believe they are right and that they have the truth on their side, and when you find a person like that there is no point arguing against those people because you're never going to convince them they are wrong.