What 2018 miner capitulation?
Glad you asked, because I don't even know what that phrase means--not to mention what significance it has or why it might lead bitcoin to plummet to $3800. That would be one hell of a drop, nearly 50% lower than where it currently is. And if that were to happen, altcoins would probably get hammered even worse.
It could happen but I try to see that as a buying opportunity.
You might see it that way and I might, too, but if bitcoin were to drop that much the market and a lot of investors and traders would be fleeing in droves. It might be quite a while before we saw $7500 again and much, much longer before bitcoin sees its previous ATH of $20k or whatever it was. I like buying opportunities but I'd prefer not to have as good an opportunity as that. And I'm sure I'm not alone.
All that said, I don't think the market is headed back to the $3k range. It's possible, true. Probable? I don't think so.