It's the opposite - holding = not using, not using = degrading adoption and more volatility due to traders having more power over the price.
/Over&Out.
Well, definitely, holders and bitcoin are important, bitcoin provides opportunities for people. And for people or communities, if they believe and see the potential of bitcoin, there is no doubt that they will invest in Bitcoin and hold it long-term or short-term, it depends on them, that's all.
Now, when it comes to strength, maybe what can strengthen bitcoin is bitcoin itself, probably, we holders will just back up Bitcoin,
because bitcoin is already strong, in my understanding.