Think Progress has put together some of Alito's colleagues criticisms of him. For example:
"[Judge Alito's] position would immunize an employer from the reach of Title VII if the employer's belief that it had selected the 'best' candidate, was the result of conscious racial bias. . . . Title VII would be eviscerated if our analysis were to halt where [Judge Alito's] dissent suggests." (Bray v. Marriott Hotels, 1997) (Judge Theodore McKee)
Title VII of the Civil Rights Act is all we have on the federal level to stop employers from being bigots in hiring and firing if they so wish. Title VII applies both to race and gender. That the soft-spoken and gentle Alito doesn't think much of it should send shivers down your spine.