That statement is ignorant. All companies are bound by those laws. But attitude and qualifications are not a protected category where as race, gender, religion, etc. are protected categories. If you take all measuring sticks away then you effectively have to hire everyone and I hope we never get there. To make reference to the fact that what I am doing is somehow illegal or inappropriate is offensive and uncalled for. I assure you that attitude is not a protected category in my area.
Well, that might be why a small company is inappropriate for some people. Large companies are usually bound by certain laws, etc. whereby it will be difficult for them to have an across the board policy like "we don't hire women or black people, we frown on communists, etc", whereas with a small company it is possible to do this. That may seem like a lucky thing if you are a white guy, until you meet the rest of the white guy gang
The attitude we are discussing here could reduce performance if carried into the job.
By extrapolation, a large company can afford to not worry too much about an individual's attitudes about many things (as long as it does not affect their performance), ...