People have to think about what makes a coin go up. It goes up when money is pouring in. When people are buying and buying and buying. We saw it during the bull run in 2017. That was huge. Yet it went "only" to about 20K$. To go to 1 million, you'd need billionaires investing massively in BTC. Since they're already billionaires, why would they risk it ?
A lots of buyers and big players can make things happen, but without them it will hard for Bitcoin to reached that levels, maybe after halving it will break the last time high but still doubtful that it can reached a million dollar value, needs to have billionaires to play the game and start pumping the market.