I don't hate the BBC I dislike it.
You seem to think it's okay for the BBC to libel someone and if they use the courts to fight back you are affronted. Trump has every right to take them to court whether he wins is another matter.
That is an odd way of looking at it. You prejudge this as libel and then attack the organisation you dislike for putting up a defence, with no consideration given to whether their defence has any weight or, indeed, the true underlying purpose of the case brought.
Thus, Trump
may have been libeled. But...
There is the small matter of publishing. The piece aired in this country. Hardly anyone in the US saw it. The only reason they saw it was because he complained, many months after it aired. That is relevant as he has sued in Florida. If (almost) no-one in Florida saw it, how has his reputation been damaged there?
Also, Trump is arguing the edit misled the audience and
thereby harmed his business to the tune of $billions. He cannot possibly make that causal connection. Moreover, the BBC are amassing a wealth of evidence to show his business is corrupt, swims in tax fraud etc. He had no reputation to protect.
Meanwhile, the defences:
Truth. Calling Gary Glitter a paedo is libel (your point) but, if he sued, would his case succeed?
Opinion. The edit may have been contrived to convey a view, but was that view an honest journalistic opinion within the protection of the First Amendment?
Malice. Was there any? That is, "actual malice" meaning the BBC knew the mangled statement was false or acted with reckless disregard for the truth. That is a very high bar. It excludes economy of time, incompetent and/or injudicious editing etc. That would probably be negligent and enough to get the apology and falling on swords, but not nearly enough to find a successful libel claim.
You are quick to pre-decide this case. I wonder if you would be so judgy if this was ITN?