The X-T2 is one of the best photography cameras I've ever owned. It's exquisitely designed for photographers. I have no complaints about this camera as a photography camera.
With this model FujiFilm introduced 4k video recording. The camera was hyped for it's 4k video capabilities and they are stellar.
My problem with the X-T2 as a video camera stems from simple usability issues for individual video creators like myself. The most glaring issue is that if you have to record shots alone where you are talking to the camera, there is no feedback available to you.
There is no recording indicator light. There is no way to turn the partially mobile rear viewfinder around.
These are two common features on modern cameras. It boggles my mind that FujiFilm neglected to include them. I would have gladly accepted more weight or cost for the camera to have those features.
These issues are bad enough but are compounded by technical issues with the camera, especially when using the hand grip. You can deal with these limitations, framing shots carefully and then sitting in front of the camera. Though it's very hard to be certain you're in focus.
The X-T2 has a 15 minute time limit on 4k recording. And 4k recording chews through battery so you'll want to get the hand grip to bump the 4k limit up to 30 minutes and add two additional batteries.
The problem myself and a lot of others are having is that, at least with the hand grip, the camera seems to stop recording randomly. For the most part this happens when a battery runs out and the camera moves on to the next one.
With the usability issues it's very easy to end up in a situation where you're talking to a camera that isn't recording. It's happened to me more than enough times.
You can get external recorders and monitors but something decent that records in 4k will cost you at least another $1000. Plus, for vloggers, that would make a very bulky camera rig.
Overall, I'd recommend looking elsewhere if you want a camera for making YouTube videos.