If you sell now you will be regretting when bitcoin get to $50,000 or $200,000 in some years to come as it has happened before and most times we regret selling too early.
Keep holding and the future is for you!
Long term speaking I agree with you, but short term speaking, hodlers have not been much of a help preaching the importance of being a hodler during uncertain times. $6000 wasn't worth dumping at people said, and we all know what happened afterwards. It could apply to the current price as well, so I would be a bit more conservative when it comes to telling people to hodl since they mostly only care about the short term picture.
What people can do is have two stashes of coins; one purely for speculative purposes, and the other for long term hodling purposes. The ratios are up to people themselves, but in my case as risk averse pussy, it's 90% hodl stash and 10% trading/speculation stash. 100% Bitcoin. I do however use Bitmex to long/short certain altcoins do they offer a decent profit making opportunity.

Perhaps one of the most insightful play for crypto hodlings, as much as we care about the full potential of cryptocurrency - utility, there are short and mid term needs that need to be satisfied. For example, even in the real world, I don't plan on throwing my entire savings in a stock or real estate on the premise that a decade later, things will be a lot rosier.