Silly for so many reasons.

1. you cannot fractionally reserve a bitcoin ETF beyond a small amount or it's obvious. When the ETF's control 22 million bitcoin, the jig is up (obviously much sooner than that, but you get the point)

2. how exactly are you going to buy and control > 50% of the hashrate while simultaneously crashing the price?

3. forks are not adopted by miners they are adopted by node operators. Did you learn nothing from the bcash fork war? The miners overwhelmingly supported the big blocks.

4. no real bitcoin gives a shit what the media or blackrock says about bitcoin. It will not be "deemed the real bitcoin" but anyone who matters in the space

5. no one is going to give a shit how much of the proof of stake bitcoin you own. Have fun with that. You could have saved yourself some trouble and just bought eth.

This post is a great example of what happens when people speculate without the proper education first. "If i was blackrock this is what I would do". Yeah kid you aint Larry Fink and you never will be.