The red colored parts of the chart are the only times that buying Bitcoin is a loss, but if you buy the dip and dollar cost average, your average-entry-price would be lower, and make your Bitcoin trade as a whole a winner.
Strong-hand-plebs will be the market geniuses of the 6-digit Bitcoin.
Of course, I see that the red zone is very small in that graph/chart that you provided above, Wind_FURY.
You have been registered on this forum since mid-2016, so let's take mid-2016 as a projection timeline.
If anyone who got into bitcoin in the mid-2016 timeframe had actually been following some variation of what you are suggesting in this post (which seems to be a combination of buying on dips and DCA), then there would be almost no way that they would actually be unprofitable, even if technically they had made some purchases with the DCA aspect of your suggestion that were higher than the current BTC price.
It's like there was so much passage of time in which BTC prices were lower than our current price that any BTC purchases that were made above our current price end up getting washed out (or averaged out into profitable) by the BTC purchases that ended up getting made below our current price, which your chart also shows a lot of that happening since mid-2016 - even though the whole chart looks kind of flatly inclining upwardly since it goes all the way back to 2011.
I know that in this thread, several members have raised both the question about not really knowing what constitutes a sufficient enough dip, and then also they raise questions about having their BTC profits to end up being less because if they employ some DCA method, then they miss opportunities to buy BTC lower (and more of it) with that same money that they had used to buy BTC higher because they ended up DCA buying rather than really being able to achieve a BIG SCORE with a BIG DIP price.
I would bet that almost all members who have been in BTC for at least 4 years have made some mistakes along the way in which they could describe some "should have" "would have" "could have" situations in which more money would have been made if they had done a, b & c rather than x, y & z. My experience has been that many folks accumulating and HODLing bitcoin should not be kicking themselves with 20/20 hindsight, but realize that lots of mistakes tend to be made along the way, and those who strive to learn from their mistakes tend to profit more in the long run and likely to make fewer mistakes by learning to employ the soundest of strategies, which are the buy on dip, dca and HODL strategies... and thinking about the matter, and acting to employ such buying and HODL in meaningful ways continues to be quite profitable in bitcoin even if some members will profit more than others and some will make more mistakes than others.