No thats not will be a reason for stop holding bitcoin, if you are holding bitcoin just for profit then you are just investing just to earn money and not for the technology behind it. There is something wrong with this idea people buy bitcoin not only for profit but because its usable as currency and you can easily send money any where and any time without the need of 3rd party.
Well, we can't force anyone to use bitcoin to be a currency. I did force someone to take bitcoin as payment but he doesn't want it. It is not the reason that it is a scam but with its volatility, he is avoiding that it might fall down and will lose his profit from what I've bought. It is usable as a currency but does all of the people think like that?