It should be evident to anyone with a half functioning brain that you are making incorrect comparisons
First, you are comparing a well-established coin with a fresh start (well, maybe not so fresh but you get the point). Further, this is not what volatility is essentially about. If some shitcoin rose 1000% in a month's timespan, it is not volatility. Volatility, as the word itself suggests, is more about oscillating prices in a certain range. In other words, to see volatility of an asset you should remove the long-term trend from its price action
And last but not least, I don't say that major altcoins are less volatile or on par with Bitcoin. They are indeed more volatile overall, but the difference is not that great. And sometimes (which is my point exactly), Bitcoin's volatility can surpass that of major altcoins. And I gave you an example of that, when Litecoin's price had been dragging behind the price of Bitcoin