No. You haven’t presented an economic mechanism which would intertwine tether and Bitcoin price.

The one all the Buttcoiners go on about is the theoretical possibility that tether is printed out of nowhere and therefore props up Bitcoins price, but there are a few problems with that logic.

1. Even fake dollars used to buy Bitcoin still represent real demand

2. There is no evidence of this occurring

3. Tether only makes up between 5% and 10% of BTC trading volume at any one time

And this is only logic to support it being manipulated up. How would a tether crash manipulate it down? If tether depegs, people will be selling tether, but nobody would be accepting it as a trade for their Bitcoins.