most of the users will buy it and leave this industry when they'll be on profits. But only those will keep hodling bitcoin even if bitcoin hits $1 million or more who knows the potential of bitcoin. So it's just a matter of time as more users will be filtered through the cycle. But adoption won't stop in the upcoming days which is the best thing for bitcoin to hit those milestone, IMHO.
I am sure there will be people who are holding when bitcoin hits a million dollars. The question is not if there will be one, the question is how long will they be holding when that happens?
There are people who are holding now, but it could be a person who bought at 40k, or it could be someone who bought at $40 as well, anyone who holds it since it was $40 made enough money to retire, even if they bought just few of them, you may end up retiring on few hundred thousand dollars if you want to live a small life and can use that smartly, after all in most nations 10-15k is yearly salary for billions around the world, that means with 100k you have 10 years, with 400k you have 40 years, that is retirement money easily. Same here, if you can buy now, and hold until 1 million dollars then you can definitely be called a good holder, if you buy at 950k and hold when it is 1 million, that is not a big deal.