Let's answer this question slowly: Would Lord Voldemort have been barred from Hogwarts under his own rules?

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Lord Voldemort wanted to rid the wizarding world of half blood wizards. Lord Volemort was born a half blood, part muggle part wizard. So the answer is yes.