You're missing my point. Conduct a poll and find out how many people younger than 25 are big Star Trek fans, INCLUDING the rebooted movies. For the people that answer they do like the rebooted movies (particularly the girls), ask them WHY, I bet 90% of the answers you get are "because Chris Pine is in it". Then ask them how much they like Star Trek TNG or Voyager. Ask them if they even know who William Shatner is. Ask them if they've heard of Star Trek Discovery.
If you happen to be younger than 25 and you're a big trekkie, I salute you. But I also assure you that you are in the minority. If Discovery is a failure, Star Trek dies with it. They can only make so many rebooted movies, they aren't going to continue forever.