Rome wasn't built in a day, and Bitcoin won't take off to the moon right now. It will take a lot of improvement, a lot of new technology and a lot of hard work.
The people who buy in rallies and sell during bear markets and then don't believe in bitcoin anymore are clowns. If the price went to 25k in the next few months I guarantee it that the community will double maybe even quadruple in just a few days.
And then if it dropped back to 15k, suddenly most of these people will disappear again. They won't believe in bitrcoin and they will not care.
If you don't want your money to be created by bankers and the government at their whim the actual price of bitcoin is secondary. Bitcoin is a central part of the puzzle when it comes to the people getting back their sovereignty.
Although I agree with some of what you said, I wouldn't call people selling in bear markets 'clowns.'
I have a solid belief in Bitcoin since 2016 and Im certain that BTC is definitely here to stay and play a big part in the global economy.
Nonetheless, I got out of BTC when it hit $20k, and came back to trading crypto in early 2019.
Its not a matter of having beliefs, but its a matter of protecting one's assets and making smart financial decisions.
I love BTC, but if I think I am gonna lose a lot of money by being in it, I will get out of it any day. My love for it won't change tho.