Yes, exactly.
You should make videos you WANT to make. Otherwise, you'll come across as disingenuous. That's how I decide what I want to talk about in my videos, whether it's something I really want to do a video on.
That doesn't mean you can't combine what you want to do with what is popular to get views though. Timing is a big thing when it comes to getting views, which is why I did a reaction/thoughts video on the Jurassic World trailer. I put that video out the day the trailer came out and it got a lot of traction, but I did it because I absolutely LOVE Jurassic Park, it's my favorite movie franchise (and why I have the nickname of Paleo 'cause I love Paleontology ;P)
I did do a couple more videos on trailers with the new Star Wars and Terminator trailers since the Jurassic World one went over well, but I didn't do one on the new Mad Max trailer, why? 'Cause I'm not really interested in it. The others are movies I'm interested in seeing when they come out and plan on doing a vlog on them.