Some of us have been here before.
So, try not to make the same mistake?
Dash is being bought by investors who are seeking to gain more bitcoin, not to gain more Dash.
All investors? Or just some? There's not an alt out there where some investors are buying it in the hopes of selling it for more BTC. So you just discovered this? It's not in any way unique to DASH.
The trend is your friend. Learn TA. Understand Bitcoin's cycles, this is its 4th now.
DASH has been in a bull run vs USD since Nov 28 2020 and it's not even in a bull run vs BTC yet. However for the next 4-8 months, almost every alt will outperform BTC.
Just be aware, at some point the trend will change.
When it does, the good alts won't die, but they'll likely suffer more pull back than BTC, so don't be surprised when people attempt to escape by selling alts for BTC.
All the 'reasons' you give won't prevent DASH from outperforming BTC during alt seasons. And all the 'fixes' you propose won't prevent DASH from underperforming BTC during bear markets.
Perhaps ETH will be the first to break this pattern with BTC... but we'll have to wait and see...