I hosted my first website in Wix in 2008/2009!
I used to create websites in both Wix and WordPress. Needless to say its an easy to create a static website when compared to creating it from scratch. Whenever a client approaches me for a static website (which they needs really fast) I prefer Wix/WordPress.
But I'll never use Wix for my own projects. A good example would be my.im Its built from scratch in ReactJS, not Wix. Why?
<head> in Wix. It's their platform!There are many other sites to create a website similar to Wix. Yes, a small percentage of static websites can be built using these tools. But they're never going to replace our React, Vue, Angular or anything
Keep learning JavaScript. It's a good start. Don't worry about Wix and other platforms.
If you're worried, just about Wix, think in this way: