Most people I know have a graduate degree. I’m not certain what your metric of frumkeit is but the only one I can point out who is less frum is the guy who gave in to his hashkafic issues and went off the derech entirely.
I find what you said to be more offensive than much of the anti-Semitism that I’ve read online. That’s not to say I’m offended. I’m not. I just find it offensive that people are so ignorant that they automatically classify college grads (like myself) as less frum.