Exactly right. If the McKay twins are not good enough (or were never good enough) for a contract with the club, then deal with them on that basis. I don't like the guilt by association that comes into so many posts about the McKay family. The twins are not responsible for the actions of their father or older brother - even if one of them acted as a post box for the flight offer to Sala from Mark McKay.
I am also a uncomfortable about some of the allegations building up against Warnock. It seems clear that he has had dealings with McKay for a long time and some of the club's signings seem to have benefited either Warnock's son (as an agent) or look like a sweetener to Willie McKay. But a lot of opinions in recent days are based on assumptions and inuendo. I doubt Neil Warnock is squeaky clean - but who is. I want to see evidence of wrongdoing rather than suspicion before coming to a judgement.