This begs the question, what if we had only Bitcoin?
The attention would definitely be focused primarily towards bitcoin only and we would finally prevent misinformation from spreading.
Although I doubt that there would be totally no misinformation left even without the presence of altcoins. I am sure that many people are still going to make the wrong choice and would lose some money into bitcoin and then complain that bitcoin is a scam.
Even if we have altcoins in the real crypto space, still bitcoin gains the highest attention that’s why we are looking forward for bitcoin to become mainstream in the future.