You're very observant Legendary, I believe SEC will find it difficult to approve ETFs on altcoins because they know that they don't have high volatility as Bitcoin
Let me believe that this is a typo or wrong selection of grammar, high volatility has to do with unpredictability, unstability and possibility of going worse direction. that is not a pro for bitcoin and isn't among its unique selling points or the basis of comparism in line with the tone of your reply.
The right word should be stability and sustainability because Bitcoin is far more of a sustainable project that all other altcoins and it has been known for setting the pace from time immemorial. Altcoins have always been known to follow the footsteps of its master Bitcoin. I'm not afraid at all of competition when bitcoin is involved cos the strong and unshakeable nature of bitcoin will always claim its dominance in any situation. This impending competition is not the first, and it will surely not be the last if at all it poses one. Bitcoin will triumph just as always.