Actually things are get changed with times. So far Bitcoin. I mean i agree that once Bitcoin was profitable more than all others altcoins even that why there are two category, Bitcoin itself and rest of are called altcoins while Bitcoin only belong to most decentralized cryptocurrency. Bitcoin was profitable fr early investor who bought btc with some cents or some dollars and who btc made them millionaires but now but btc already pump too mut ch and from this position it is pretty hard to pump 3/4 time while a altcoin like memecoin could pump 10x within a day lol, just an example. But btc is always best for sure profit, for safe and assuring investment
Ultimately it's the comparison between highly vola tile altcoins with a possibility of extreme profit or loss, would say all or nothing and guaranteed profit but may be slow and steady which is Bitcoin. As you have mentioned it would take good amount of time for Bitcoin to even increase 3x but for an Altcoin it's just a matter of an hour or day. Indeed Bitcoin was most profitable and will remain most profitable even in the future for those who are not willing to take much risk or long term hodlers but Altcoins will be the preferred by those high risk takers who don't want to hodl and looking for quick profit by considering the risk factors involved.
This bullrun we will see how people will switch from bitcoin to Altcoin once bitcoin's price pumps and stagnates at a level which triggers Altcoin rally.