And what would be a read-only version of X like XCancel compete against, exactly? Ads impressions? That would be the only possible thing yet they don't add any ads.
Which is in a few jurisdictions, or at least is not prosecuted if it's for personal use. Also, according to your definition, the creator of uBlock Origin or any other adblock system should be sued in the same way, because they are depriving $ADS_CORP of their precious impressions.
i dont think the actual copyright owners care, given they put their content onto a vaguely public view where they aim to get the most traffic to something else they are doing