Bitcoin Unlimited as been debunked numerous times, the developers are just not cut for the job that is making a digital safen that guarantees things will be where they should be decades from now. Only conservative adults can get the job done so Core will remain as main devs.
https://www.reddit.com/r/Bitcoin/comments/5rfuc0/xpost_from_the_other_sub_what_are_the_main/Here you can read more.
Of course franky1 will disregard everything as "/r/bitcoin" cultism while not seeing how the actual cultists are the /r/btc morons.