My "deplorable" Trump-voting attorney friend claims that an unaccountable ICANN spells the end of the internet as they supposedly will discriminate against cert

My "deplorable" Trump-voting attorney friend claims that an unaccountable ICANN spells the end of the internet as they supposedly will discriminate against certain users because of their political philosophy, as private organizations are not limited by the First Amendment. I'm blissfully ignorant of ICANN, etc. Can someone here give me an answer for my paranoid right-wing libertarian friend?