I agree that deletionism is a big problem.
Those kind of abstract accusations do not belong in an encyclopedia article, and while there's a wealth of "citations" buried under the [5], none are anything other than news articles repeating the same accusation. It's baseless mudslinging that is the exact opposite of sticking to provable individual claims and facts, like a proper encyclopedia article should consist of.
Granted, it's not an insurmountable bar as it appears anyone with 500 edits can begin to participate. However, it shows a clear attempt to control the narrative to a specific one, and erecting barriers against changing that while officially endorsing the current one. It spans greater than just that, and seems common across other political articles on Wikipedia.
It seems to me that describing Marjorie Taylor Greene as a "far-right conspiracy theorist" is just as encyclopedic and verifiable as describing Charles Manson as "an American criminal who led the Manson Family" or Jeffrey Dahmer as "an American serial killer and sex offender who committed the murder and dismemberment of 17 men and boys". Why do you disagree?