I am afraid the question has become biased because of "who said what to which news paper"
If Jackie Stewart (just as an example) would have said the same to Autosport, the reactions could have been different. It is always sad to see real talents, like for instance Chris Amon or Michele Alboreto struggling at the end of their career with the lowest cars of the field. DC in a Minardi does not seem to look right. If he wants to continue that would be his decision but I would not think it a bad idea if he would stop or try some other types of motorsport. I don't think he will have to work for a living for the rest of his life anyway.
"I find the whole business of religion profoundly interesting, but it does mystify me that otherwise intelligent people take it seriously." Douglas Adams