I wonder were there any historical precidents of antitrust actions taken specifically when there wasn't control over suppply either horizontally or vertically resulting in the end of the chain being unable to compete.

Not taking this as evidence of "it never existed" but genuinely wondering if there was ever an obscure bit of precedence by "pure quality".

Microsoft's privileging of Internet explorer and its were a closer example of just anti-competitive but they also had the overwhelming computer market share sold.

I don't recall of any cases where so much as a patent was revoked just because it lead to far more market dominance than expected from the limited time. Even when it utterly devestated entire industries like what cloth mills did to the literal cottage industry weavers.

I don't think where this is coming from, but you seem to imply that there is case now with FB.

I meant in more of a generic sense (as to where they were usually applied) than the specific definition of the law. Will definitely read the book if I can find it somewhere. Not based out of US, so might be difficult to find.