A socialist group at Bowdoin College — Mayor Mamdani’s $94,000-a-year alma mater — is defying administrators by planning to host Hizzoner’s anti-Israel father on campus, while courting toxic Marxist influencer Hasan Piker for a separate lecture. Administrators at the posh Maine college ordered the group, Bowdoin Socialists, in February to cease publishing online content and tone down other political activity after it released a report linking two former college trustees to  disgraced financier