antecedent of relative pronoun ‘which’

This is from a TIME article.

The irony is that despite all of Buterin’s cachet, he may not have the
ability to prevent Ethereum from veering off course. That’s because he
designed it as a decentralized platform, responsive not only to his
own vision but also to the will of its builders, investors, and ever
sprawling community. Buterin is not the formal leader of Ethereum. And
he fundamentally rejects the idea that anyone should hold unilateral
power over its future.

Which has left Buterin reliant on the limited tools of soft power: writing blog posts, giving interviews, conducting research, speaking
at conferences where many attendees just want to bask in the glow of
their newfound riches. “I’ve been yelling a lot, and sometimes that
yelling does feel like howling into the wind,” he says, his eyes
darting across the room. Whether or not his approach works (and how
much sway Buterin has over his own brainchild) may be the difference
between a future in which Ethereum becomes the basis of a new era of
digital life, and one in which it’s just another instrument of
financial speculation—credit-default swaps with a utopian patina.

Is the antecedent of ‘Which’ in bold the sentence ‘And he fundamentally rejects the idea that anyone should hold unilateral power over its future.’?

Answer

I think this is a kind of stylistic thing. It is essentially identical in meaning to as if they had written:

This has left…

There isn’t necessarily a very clear grammatical antecedent, just a general idea that this next paragraph builds on.

Attribution
Source : Link , Question Author : SEProfile , Answer Author : Steve Bennett

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