i see this way... miner process transaction, then they get paid in bitcoin
atm we are in this bear market because demand is less than production because miner are minting new coin but within decades

That doesn't prove price will go up in the future. If demand keeps going down and down, and it never goes up again. Then doesn't matter if there is halving or no more bitcoins mined, because market will pay less than now.
Your assertion is only true if demand remains constant or increases in the future. But you can't know that.
if i follow your logic then, bitcorn will soon be 10 usd, hashrate will plummet to just few giga because there is no incentives to mining and its all over for bitcorn mining industry... ppl who mining will do it for fun (and use pc and smartphones) and will not sell anyway. it will be the worst scenario and ultimate test to bitcorn existence.
even then i still believe that bitcorn can endure such disaster and survive