Please convince me why Bitcoin is better then ALTS I would really what to hear your opinion

Everyone is welcome

This is the biggest proof that Bitcoin is far better than altcoins and the majority of investors are behind it, Bitcoin dominance according to this chart in Coinmarketcap is now at 68.9%
https://coinmarketcap.com/charts/ and there was a study according to Forbes that it could even go as high as 90%, this is the reason why some altcoins are dying.