It doesn't matter. The only thing that matters is choosing whatever compiler, framework or library you want to use. React is a very safe bet in my opinion, it has entrenched itself into many facets of the industry (both corporate and non-corporate). However, don't underestimate the growing popularity of Vue. I've worked with both React and Vue, and I think React needs to up its game because Vue is growing rapidly, has some great ideas (single file components) and more people are becoming aware of it.

The most dangerous thing that any developer can do is choose to work with only one framework or library. Don't put all of your eggs into one basket.