When referring to Mr. Birling's ironic speech that highlights his stupidity and myopia (short-sightedness), Eric is shown to be questioning this staunch and misguided worldview, asking;
Before quickly being drowned out, with his attempts of speaking up cut off;
Showing how Eric is cowed (forced) into agreeing with the patriarchal and classist worldview posited by Mr. Birling whilst being unable to speak out.