If majority of the Full Node network denies a certain block, that
block is considered invalid and other miners will ignore that invalid
work.
Yeah. It sucks when that happens or sometimes two blocks are found within miliseconds of each other and one is orphaned. Both stink because you lose your money and, on occasion, it's been 72 hours without a computer pointing to the same pool as you finding and sharing a block reward, which means you haven't covered electricity costs.