It is certain that removing ordinals will lead to a decrease in demand on the network, but in return it will lead to alleviating congestion, accelerating transactions, and reducing the problematic fees that were annoying everyone.
Well, frankly, for me, even if the price of Bitcoin drops a little, it will not bother me in exchange for the great benefits and improvement that will occur to the network as a result of these ordinals.
This will be most inconvenient for miners who will lose half of the rewards after halving and if the ordinals are removed they will lose an important source of fees.