Actually, GR was lashing out because in 1969 he sold the STAR TREK IP rights to Paramount and didn't get a dime from the successful marketing and merchandising Paramount did with TOS in syndication.No one's been alienated except for a vocal minority who use YouTube to rile up the fanbase.
Roddenberry was lashing out because Paramount removed him from authority over the movie after TMP. Meyer could have done thoughtful and introspective movies about a Starfleet which really was some sort of futuristic NASA and not at all militaristic and Roddenberry would still have insisted that's not what Star Trek is supposed to be.
Plus when GR started Lincoln Enterprises to sell some Star Trek memorabilia and Trek related merchandise, Paramount sued him and eventually settled where he paid some royalties and licensing fees to continue.
GR really tried hard to make and get TNG to completely replace TOS in the minds of Star Trek fans (,because Paramount gave him full control of TNG and a large slice from the merchandising of TNG), but he wasn't as successful in that regard as he hoped he would be because he still got no money from Paramount merchandising of TOS.
