Let the time speaking by itself. Parler will end up in court.
Why ? Because for years, Trump's administration (I don't recall but maybe Obama's also) is fighting against "Fake News", forcing platforms to do fact checking "or else".
A new platform emerging, promoting its lack of control over that will irremediably leads to huge abuses and scandals. It's just a matter of time.
A massive scandal over a year, a closure over two or three tops.