Its simple most young people only read left leaning news and they only hear/watch one side for their info heavy forbid they'd go outside their comfort zones to actually read anything they don't agree with - because it might just make them question what they are supporting
Social media content heaven forbid they get of the bandwagon they jumped on they might lose followers and get less likes - that's like a prison sentence to some - so they fake it by not understanding what they are supporting