Bad for crypto generally is that BTC market dominance is going up and up (circa 70% now), and so altcoins seem to be inferior but really there are many good and more advanced altcoins. This will hinder crypto development. Hopefully market will weed out bad altcoins and the good ones will get deserved attention.
How can anyone say that what is good for BTC is bad for crypto generally?
Think about it. When was the last alt season? 2017. And why did the alt season happen? BTC was shooting like crazy.
And if Bitcoin gets accepted by states and people, and people say it's good, price goes up, what happens to alts? That's right. Alts go up too.
That's how things happened the last time bitcoin pumped that hard, alts community also being push and the value rises that high, if we do anticipate that the market will do the same and we do have a good positive look for the future, we don't need to worry about how things might be as long as you are keeping your assets on hold and you are working to make better judgement when positioning your entry.