Are you saying that Dr Sowell does not have a right to his opinion? If so, shame on you. Besides the subject of the article is not Donald Trump or Hillary Rotten Clinton, although he mentions them. The subject is Congress. If you had read the op-ed you would have noticed that.
I said I thought less of him for having expressed that opinion. He's fully entitled to hold and express that opinion. The two are not equivalent. In any case, he's not a snowflake.
I read the article; your point was that that the article was about the Congress, not Trump. That reinforces my point; why the need for the gratuitous shot at Trump? Can you think, then answer?