No matter how high crypto coins go bear market is unavoidable it's just the way the market survives, many people are brainwashed with present market condition that they already forget what bear market is, no amount of money can stop bear market from happening, don't say I don't warn you be prepared.
You are absolutely correct. A chart never goes in one direction. The more we zoom in we find out the ups and downs of it.
The thing is that once a bull run starts more number of users get attracted towards it and starts investing in it.
This creates a bigger spike in the charts and that's where the professionals take their profits out creating a dump which is gets bigger and bigger due to panic selling.
This often results in a bear market just like the 2018 one. It was indeed a long bear market before bitcoin recovered and started another bull run.
I am pretty much sure that we will see the next bear market soon but I am not sure whether it is going to be this year or in the next 2 years.
But yeah, better be prepared for it rather than blaming bitcoin later.