Enterprise is not Star Trek. they broke the timeline.
Based on Mike Okuda's own timeline... in the 2150s, we use fusion-powered ships that look like cylinders, have lasers and fusion rockets, and there is no Starfleet.
There are instead, two organizations, the Unied Earth Space Probe Agency, and the United Earth Space Navy.
I was able to ignore all the problems when the show was good. But through 3rd season, the writing got absolutely horrible. Brannon Braga is a washed up tit who needs to fuck off. The jury's still out on Rick Berman, who never had any respect for the "history" of Trek. I honestly think he's the one responsible for "front-loading" all the TNG tech into the show.
Oh, also the absolute unbelievability of alien technology. Here's humans flying around in their mediocre ship, and Vulcans have 24th century tech. So... we're supposed to believe that from this time on, the rest of the galaxy just kinda sat around and waited for us to catch up? That even after the almighty UFP was founded, that the other races just kinda hid their better tech away and gladly embraced inferior earth tech?
TOS is the chronologically oldest Star Trek.
Enterprise never happened.