If the price of the Altcoin goes up, then the Bitcoin value will go up. The reason is that when the price of Bitcoin goes up, the price of Altcoin goes up as well.
If people start buying Altcoin more than today, the price of Bitcoin will go up as well.
If the price of Bitcoin goes up by 2021, it will be a record.
Am I right?
Do you have any idea what you are saying? Or is it just me who can't understand what you are trying to say. If you are talking about the price of altcoin rising in the future or not, then nobody knows the answer. You can't predict the future. Even if you could, you would end up altering the future based on the information you have, thus causing the future event you predicted not to happen.
Price of altcoins are more volatile. In most of the case, if the price of bitcoin starts to rise, most of the other altcoins starts to go down due to people selling off their altcoin to invest on bitcoin.