A throne indeed, Bitcoin has certainly set a standard for itself out there in the crypto space and many people are still in the crypto space because of the reliability of Bitcoin.
People invest in Bitcoin is here because of Bitcoin. People gamble here with altcoins only because of altcoins, they are not here because of Bitcoin and if they leave, it's because of their losses with scam altcoins.
Although most of these altcoins are shitcoins but there is still a fact that we can't deny About some of these coins and that is the ability of some of these coins to also pump very high along with Bitcoin during the bull run and if you lucky to purchase the right coins you can also make lots of cash from their pump although it's very risky because the same way they pump so fast that equivalently the same way they dump so fast too.
They have pumps without Bitcoin because they are centralized projects with most of circulating supply is in their founders or developer teams. It's easily to manipulate those altcoin market with centralized token distribution. In a Bitcoin bull run, cryptocurrency market gets more attention and many newbies will join it but unfortunately they choose altcoins to gamble, not choose Bitcoin to invest.